Super-adiabatic quantum weaving method and device, computer equipment and storage medium

Abstract

The embodiment of the invention relates to the field of quantum computing, in particular to a super-adiabatic quantum knitting method and device, computer equipment and a storage medium, and the super-adiabatic quantum knitting method comprises the steps that a preset atom ensemble is obtained, and the preset atom ensemble is composed of 87Rb atoms; constructing at least one Tripod structure according to a preset atom ensemble; determining a total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian; two ground states are selected from the total number of ground states, the two ground states comprise common states of adjacent Tripod structures, and probability amplitudes and initial phases of the two ground states are not equal; and knitting operation is performed on the two ground states to obtain information exchange between the two ground states, so that super-adiabatic quantum knitting is realized. According to the method, the 87Rb atom ensemble is used for super-adiabatic quantum knitting, so that non-Abell knitting can be completed in a shorter time than before, namely, information exchange of two ground states can be rapidly completed, and complex quantum logic operation can be realized in a wider state space so as to support higher-dimension quantum calculation.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of quantum computing, and in particular to a superadiabatic quantum weaving method, apparatus, computer equipment, and storage medium. Background Art

[0002] Remarkable progress in the fields of quantum computing and quantum information science has provided us with a new perspective on our understanding of the physical world and demonstrated great potential for solving problems that are difficult for traditional computers to cope with. However, quantum systems have encountered major challenges in practical applications, especially the decoherence problem caused by the high sensitivity of quantum states to environmental disturbances. This phenomenon has seriously restricted the large-scale application of quantum computing. In order to overcome this problem, topological quantum computing has emerged as a fault-tolerant computing method and has attracted widespread attention internationally. Researchers have proposed a variety of physical systems to realize topological quantum computers, including fractional Hall states, Majorana zero modes, topological superconductors, and cold atoms.

[0003] The core of topological quantum computers lies in the use of non-Abelian anyons, which have non-commutative statistical properties, so that the manipulation of quantum information can be achieved through topological braiding. This manipulation does not rely on the exchange trajectory of anyons, and its accuracy is protected by topological properties, thus providing an inherent error prevention mechanism. Non-Abelian braiding has therefore become an important cornerstone in the field of topological quantum computing and a key direction of quantum computing research.

[0004] The braiding operation of quantum states has attracted much attention due to its great potential for realizing topological computing. Quantum braiding realized adiabatically is robust to systematic errors, but its long evolution time makes it susceptible to decoherence and dephasing. Despite this, simulation experiments of non-Abelian braiding operations have made some progress in optical waveguides, acoustic waveguides and atomic systems. Since the evolution of non-Abelian braiding is restricted by degenerate subspaces, adiabatic conditions with long evolution times are usually used in experiments, but this also exacerbates the effects of decoherence and dephasing. Therefore, how to reduce the effects of decoherence and dephasing while maintaining the protection of topological properties has become a problem that needs to be solved urgently in the current field of quantum computing. Summary of the invention

[0005] One purpose of the embodiments of the present application is to provide a superadiabatic quantum weaving method, device, equipment and storage medium to solve the technical problem of quantum weaving for realizing topological quantum computing under non-adiabatic conditions.

[0006] In a first aspect, a super-adiabatic quantum weaving method is provided, comprising:

[0007] Acquire a preset atomic ensemble, wherein the preset atomic ensemble consists of 87Rb atoms;

[0008] Constructing at least one Tripod structure according to the preset atomic ensemble;

[0009] Determine the total number of ground states corresponding to the at least one tripod structure based on a preset Hamiltonian;

[0010] Selecting two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal;

[0011] A weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving.

[0012] In combination with the first aspect, in a possible implementation, determining the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian includes: obtaining target angle information; using the target angle information as a query identifier, performing an interaction numerical query in a preset data table to obtain an interaction numerical set; obtaining a preset Hamiltonian based on the interaction numerical set and a first preset formula; determining multiple ground states and multiple excited states based on the preset Hamiltonian; and determining the total number of ground states corresponding to the at least one Tripod structure based on the multiple ground states and the multiple excited states.

[0013] It can be seen that in this embodiment, the total number of ground states of the Tripod structure in the quantum system can be systematically analyzed.

[0014] In combination with the first aspect, in a possible implementation method, the weaving operation is performed on the two ground states to obtain information exchange between the two ground states to realize super-adiabatic quantum weaving, including: obtaining a first operation instruction for the two ground states; adding an adiabatic auxiliary item to the first operation instruction to obtain a second operation instruction; based on the second operation instruction, the weaving operation is performed on the two ground states to obtain information exchange between the two ground states to realize super-adiabatic quantum weaving.

[0015] It can be seen that in this embodiment, information exchange between ground states in a quantum system can be systematically realized, that is, more efficient quantum information processing can be achieved while maintaining topological protection. Superadiabatic quantum weaving provides a method for performing quantum operations under non-adiabatic conditions.

[0016] In combination with the first aspect, in a possible implementation, the first operation instruction is an adiabatic operation instruction, and the adiabatic weaving operation is a non-transition information exchange between the two ground states under the adiabatic condition of Ωt≥30π.

[0017] In combination with the first aspect, in a possible implementation, the second operation instruction is a superadiabatic weaving operation, and the superadiabatic weaving operation is a non-transition information exchange between the two ground states under a non-adiabatic condition of Ωt<30π.

[0018] In combination with the first aspect, in a possible implementation method, based on the second operation instruction, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, and superadiabatic quantum weaving is realized, including: based on the second operation instruction and a preset weaving operator, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, and superadiabatic quantum weaving is realized, wherein the preset weaving operator is obtained by a preset Hamiltonian.

[0019] It can be seen that in this embodiment, information exchange between ground states in a quantum system can be systematically realized.

[0020] In combination with the first aspect, in a possible implementation method, based on the second operating instruction and the preset weaving operator, the two ground states are weaved. The information exchange between the two ground states is obtained to realize super-adiabatic quantum weaving, including: setting parameters for the two ground states to obtain the amplitude and phase information corresponding to each of the two ground states, the amplitude corresponding to each ground state is different, and there is a phase difference in the phase information corresponding to each of the two ground states; based on the second operating instruction and the preset weaving operator, the amplitude and phase information corresponding to each of the two ground states are weaved. The information exchange between the two ground states is obtained to realize super-adiabatic quantum weaving.

[0021] It can be seen that in this embodiment, by setting parameters and performing specific operations on the ground state, the accuracy of quantum computing is improved.

[0022] In a second aspect, a super-adiabatic quantum weaving device is provided, the device comprising:

[0023] An acquisition unit, used for acquiring a preset atomic ensemble, wherein the preset atomic ensemble consists of 87Rb atoms;

[0024] A construction unit, used for constructing at least one tripod structure according to the preset atomic ensemble;

[0025] A determination unit, configured to determine the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian;

[0026] A selection unit, used for selecting two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal;

[0027] The operation unit is used to perform weaving operation on the two ground states, obtain information exchange between the two ground states, and realize superadiabatic quantum weaving.

[0028] In a third aspect, an embodiment of the present invention provides a computer device, including:

[0029] at least one processor; and,

[0030] a memory communicatively connected to the at least one processor; wherein,

[0031] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to the first aspect.

[0032] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the method as described in the first aspect.

[0033] In the solution implemented by the above-mentioned superadiabatic quantum weaving method, device, computer equipment and storage medium, first, a preset atomic ensemble is obtained, and the preset atomic ensemble is composed of 87 Rb atoms, secondly, constructing at least one Tripod structure according to the preset atomic ensemble, then determining the total number of ground states corresponding to the at least one Tripod structure based on the preset Hamiltonian, selecting two ground states from the total number of ground states, the two ground states containing adjacent Tripod structure common states, the probability amplitudes and initial phases of the two ground states are not equal, and finally, performing a weaving operation on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving. This method uses 87 Superadiabatic quantum weaving of the Rb atomic ensemble can complete non-Abelian weaving in a shorter time than before, that is, quickly complete the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space to support higher-dimensional quantum computing. Due to the use of superadiabatic conditions, the impact of decoherence on the quantum system can be significantly reduced, making quantum information processing more stable, and quickly completing the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space, supporting higher-dimensional quantum computing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 It is a schematic flow chart of a super-adiabatic quantum weaving method in one embodiment of the present invention;

[0036] Figure 2A It is an introduction to two tripod configurations and the weaving direction and sequence in one embodiment of the present invention;

[0037] Figure 2B It is the result of information exchange between two ground states satisfying adiabatic conditions in a tripod configuration in one embodiment of the present invention;

[0038] Figure 2C It is the information exchange result of three ground states satisfying adiabatic conditions under two tripod configurations in one embodiment of the present invention;

[0039] Figure 2D It is a microwave control form and parameter change table of a tripod configuration in one embodiment of the present invention;

[0040] Figure 2E Schematic diagram of two base states of up and down cross weaving of a tripod configuration in one embodiment of the present invention;

[0041] Figure 2F It is the information exchange result of three ground states of G2G1 adiabatic braiding and superadiabatic braiding under two tripod configurations in one embodiment of the present invention;

[0042] Figure 2G It is the information exchange result of three ground states of G1G2 adiabatic braiding and superadiabatic braiding under two tripod configurations in one embodiment of the present invention;

[0043] Figure 3 is a schematic structural diagram of a super-adiabatic quantum weaving device in one embodiment of the present invention;

[0044] Figure 4 It is a schematic diagram of the structure of a computer device in one embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0046] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other, all within the scope of protection of the present application. In addition, although the functional module division is performed in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a sequence different from the module division in the device or the flow chart. Furthermore, the words "first", "second", "third", etc. used in this application do not limit the data and execution order, but only distinguish the same items or similar items with basically the same functions and effects.

[0047] The present invention is described in detail below through specific embodiments.

[0048] The technical solution of the present application can be applied to super-adiabatic quantum weaving scenarios.

[0049] In order to overcome the effects of energy dissipation and decoherence in adiabatic manipulation, a quantum adiabatic shortcut is created.

[0050] In order to overcome the dissipation limitation in adiabatic operation, the introduction of adiabatic shortcut (STA) technology is an effective quantum control strategy. The core of STA is to introduce an auxiliary Hamiltonian to compensate for the non-adiabatic effect, so that the system can evolve rapidly along the target state trajectory while maintaining its dependence on the original Hamiltonian. Driven by STA, the system can complete the weaving operation in a shorter time, thereby achieving the high robustness required for non-Abelian weaving in topological quantum computing experiments. The adiabatic shortcut technology has brought new opportunities for the experimental realization of non-Abelian weaving in topological quantum computing, allowing topological states to form rapidly in a shorter time while maintaining the robustness of the weaving. The advancement of quantum computers from theoretical configuration to practical application is inseparable from the promotion of non-Abelian weaving and the development of adiabatic shortcut technology.

[0051] In view of this, the present application proposes a super-insulating quantum weaving method to solve the above problems, which is described in detail below.

[0052] See also Figure 1 , Figure 1 A schematic flow chart of a super-adiabatic quantum weaving method provided by an embodiment of the present invention is characterized in that the method comprises the following steps:

[0053] S10, obtaining a preset atomic ensemble, wherein the preset atomic ensemble is composed of 87 Rb atomic composition.

[0054] An atomic ensemble is a collection of atoms that can be in the same or different quantum states. In experimental physics and quantum information science, atomic ensembles are often used to study collective effects, quantum state manipulation, and quantum information processing.

[0055] The preset atomic ensemble refers to a group of atoms that are pre-selected and prepared in the experiment, and these atoms will be used in the experiment and research. 87 Rubidium-87 is an isotope commonly used in cold atom physics experiments and has many excellent properties, making it an ideal choice for quantum computing and quantum information research.

[0056] Specifically, 87 Rb atoms have good stability and controllability and perform well in quantum simulation and quantum computing. Through laser cooling and magneto-optical trap technology, 87 The Rb atoms are cooled to a temperature close to absolute zero, enabling precise control of the atomic motion.

[0057] Specifically, obtain such a 87 The preset atomic ensemble composed of Rb atoms usually requires the following steps: First, laser cooling technology is used to cool 87 Rb atoms are cooled to extremely low temperatures, usually in the millikelvin (mK) range, which can be achieved through a variety of methods, such as magneto-optical traps (MOTs) or optical sticking; the cooled atoms need to be trapped in a specific spatial region, which can be achieved using magnetic traps, optical traps, or Paul traps; once the atoms are trapped, laser pulses can be used to prepare them to a specific quantum state, for example, laser excitation can be used to transfer atoms from the ground state to an excited state, or to prepare a specific hyperfine state; in order to perform quantum computing or information processing, it is necessary to be able to precisely manipulate the quantum states of these atoms, which can be achieved by adjusting the frequency, intensity, and phase of the laser; finally, a method is needed to detect the state of the atomic ensemble, which usually involves detecting the light emitted by the atoms. Through these steps, scientists can obtain a 87 Preset atomic ensemble composed of Rb atoms

[0058] It can be seen that in this embodiment, 87 As a preset atomic ensemble, Rb atoms provide an ideal experimental platform for the research of quantum computing and quantum information science.

[0059] S20. Construct at least one tripod structure according to the preset atomic ensemble.

[0060] Among them, the tripod structure is a special atomic energy level structure, usually composed of four energy levels, one of which is the ground state and three are excited states. Through appropriate laser field coupling, these energy levels can form a tripod structure.

[0061] Among them, building a Tripod structure involves arranging the atoms in the atomic ensemble into specific quantum states, which have certain interactions with each other, thus forming the quantum bit configuration required for the Tripod structure.

[0062] Specifically, get a group 87 Rb cold atoms are used to prepare appropriate magnon energy levels under suitable conditions and configure them into a Tripod structure. This structure uses the ultrafine structure of cold atoms to achieve energy level manipulation through microwave drive. The Tripod structure has a double degenerate subspace, which is used to support the non-Abelian anyon weaving required for topological quantum computing and is scalable. Figure 2A As shown in (a), Figure 2A (a) in the figure is the triply degenerate subspace extended to the seventh energy level.

[0063] exist Figure 2A Figure (a) is a schematic diagram of the energy level structure of the seven-level triply degenerate subspace selected in an example of the present invention, and Figure (b) shows the definition of different weaving orders appearing in the seven-level weaving in an example of the present invention. It can be seen that the two ground states selected for the weaving operation must contain |D0>.

[0064] It can be seen that in this embodiment, a Tripod structure is constructed in a preset atomic ensemble, and this structure can be used to implement quantum algorithms, quantum simulations, and other quantum information processing tasks.

[0065] S30, determining the total number of ground states corresponding to the at least one tripod structure based on a preset Hamiltonian.

[0066] Hamiltonian is an important concept in quantum mechanics, which is used to describe the total energy of a system, including kinetic energy and potential energy. In a quantum system, Hamiltonian can be used to determine the energy level structure of the system and the corresponding ground state (i.e., the lowest energy state). For a tripod structure, the total number of ground states in the structure can be calculated and determined through the preset Hamiltonian.

[0067] The ground state refers to the lowest energy state of a system. In quantum computing, ground states are often used as the basis for calculations because they are relatively stable and not easily disturbed by external interference.

[0068] Here, determining the total number of ground states means finding all possible ground states of the system and determining the number of these ground states by calculating and analyzing the Hamiltonian.

[0069] Among them, in the Tripod structure, there may be multiple ground states, which correspond to different quantum information encodings and operations.

[0070] Among them, the formula corresponding to the preset Hamiltonian is as follows:

[0071]

[0073] Among them, H is the Hamiltonian, l and r represent different tripod models after deconstruction, respectively. For each tripod model, a suitable ground state and weaving operator are selected. After selecting one of the tripods, it is necessary to ensure that the microwave intensity between the remaining states is 0, and add the corresponding auxiliary adiabatic acceleration term to achieve superadiabatic weaving between the two ground states.

[0074] It can be seen that in this embodiment, by presetting the Hamiltonian, the total number of ground states in the Tripod structure can be determined, that is, by solving the eigenvalue equation of the Hamiltonian, the energy level structure and quantum state of the system can be analyzed.

[0075] S40, selecting two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal.

[0076] Among them, in adjacent Tripod structures, the common state can be the same excited state or ground state, which depends on the specific energy level structure and coupling mode.

[0077] The probability amplitude is the square of the absolute value of the wave function, which represents the probability of being in a certain quantum state. The unequal probability amplitudes of the two ground states mean that they have different occupation probabilities.

[0078] Among them, the initial phase is the phase part of the wave function, which represents the relative phase of the quantum state. The unequal initial phases of the two ground states mean that their phase changes in time evolution are different, which affects the interference and interaction between them.

[0079] Specifically, in the Tripod structure, based on the preset Hamiltonian, two specific ground states are selected as the main objects of weaving, and it is ensured that they have different probability amplitudes and initial phases. For example, the four-level selected |ψ>=1 / 3|D1>e iπ / 2 +2 / 3|D2> is the initial state,

[0080] in,

[0081]

[0082] The layout number changes before and after weaving are shown in Figure 2B , where P1 and P3 represent the changes in the bare state. In the seven-level triple degenerate subspace, |ψ>=1 / 6|D is selected. l >e iπ / 2 +1 / 3|D0>+1 / 2|D r >e ―iπ / 2 is the initial state;

[0083] Where |D l >=1 / β[sinθ|1>―cosθcosφ|2>];

[0084] |D r >=1 / β[sinθ|5>―cosθcosφ|4>];

[0085] |D0>=β / α[cos 2 θsinφcosφ(|1>+|5>)+cosθsinθsinφ(|2>+|4>)―|3>],

[0086] The layout number changes before and after weaving are shown in Figure 2C , the two figures respectively represent different weaving orders.

[0087] Among them, whether it is a tripod configuration or a two-tripod configuration, the changes of the two parameters θ and φ involved are consistent, as follows:

[0088]

[0089] / 2,t∈[0,T], where b=0.1T,

[0090] It can be seen that in this embodiment, two ground states with different probability amplitudes and initial phases are selected from multiple ground states, and these two ground states contain the common state of adjacent Tripod structures, which can realize coherent manipulation of quantum states.

[0091] S50, performing a weaving operation on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving.

[0092] Among them, braiding operation is a quantum operation that involves a specific transformation of the ground state of a quantum system, so that the system evolves from one quantum state to another. In topological quantum computing, braiding operation usually refers to a non-Abelian transformation performed in the quantum state space, which can exchange information of quantum states and produce phase differences in the process.

[0093] Information exchange refers to the transfer of quantum information between two quantum states. Through weaving operations, quantum entanglement can be generated between the two base states, thereby realizing the exchange of quantum information.

[0094] Among them, superadiabatic usually refers to a fast quantum operation method. Compared with the traditional adiabatic process, the superadiabatic process can realize the change of quantum state in a shorter time.

[0095] Quantum braiding is a topological operation that can achieve the conversion or entanglement of quantum states by performing topological operations on quantum states in parameter space. Superadiabatic quantum braiding means achieving this topological operation in a shorter time, thereby improving the speed and efficiency of quantum computing.

[0096] It can be seen that in this embodiment, non-Abelian weaving can be completed in a shorter time than before through superadiabatic quantum weaving, that is, the information exchange between two ground states can be completed quickly, and complex quantum logic operations can be realized in a wider state space to support higher-dimensional quantum computing.

[0097] This method uses 87 Superadiabatic quantum weaving of the Rb atomic ensemble can complete non-Abelian weaving in a shorter time than before, that is, quickly complete the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space to support higher-dimensional quantum computing. Due to the use of superadiabatic conditions, the impact of decoherence on the quantum system can be significantly reduced, making quantum information processing more stable, and quickly completing the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space, supporting higher-dimensional quantum computing.

[0098] In one embodiment, determining the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian includes: acquiring target angle information; using the target angle information as a query identifier, performing an interaction value query in a preset data table to obtain an interaction value set; obtaining a preset Hamiltonian based on the interaction value set and a first preset formula; determining multiple ground states and multiple excited states based on the preset Hamiltonian; and determining the total number of ground states corresponding to the at least one Tripod structure based on the multiple ground states and the multiple excited states.

[0099] The target angle information may be manually set or selected from conventional data, and is not limited here.

[0100] The preset data table contains the interaction values ​​corresponding to different angle information, which can be the coupling strength, energy level difference, etc. between different quantum states in the system. By using the target angle information as a query identifier, the corresponding interaction value set can be found in the data table. Figure 2D As shown, Figure 2D It is a microwave control form and parameter change table of a tripod configuration, and the table can be used as a preset data table.

[0101] The first preset formula is the formula corresponding to the preset Hamiltonian mentioned in S30, as follows:

[0102] No repetition is given here.

[0104] Among them, by solving the eigenvalue problem of the Hamiltonian, the energy level structure of the system can be obtained, including multiple ground states and multiple excited states. The ground state is the state with the lowest energy of the system, and the excited state is the state with higher energy of the system. By analyzing the eigenvalues ​​and eigenvectors, the ground state and excited state of the system can be determined.

[0105] Among them, by analyzing the eigenvalues ​​and eigenvectors of the Hamiltonian, the distribution of the ground state and excited state in the Tripod structure and their interaction relationship can be determined.

[0106] The determination of the total number of ground states requires sorting the eigenvalues ​​of the Hamiltonian to find the state with the lowest energy. For the tripod structure, it is usually necessary to consider all possible couplings and interactions in the system to ensure the accuracy of the total number of ground states.

[0107] It can be seen that the total number of ground states of the Tripod structure in the quantum system can be systematically analyzed in this embodiment.

[0108] In one embodiment, the weaving operation is performed on the two basis states to obtain information exchange between the two basis states to realize super-adiabatic quantum weaving, including: obtaining a first operation instruction for the two basis states; adding an adiabatic auxiliary item to the first operation instruction to obtain a second operation instruction; based on the second operation instruction, the weaving operation is performed on the two basis states to obtain information exchange between the two basis states to realize super-adiabatic quantum weaving.

[0109] Specifically, the first operation instruction is an adiabatic operation instruction, and the adiabatic weaving operation is to perform non-transition information exchange between the two ground states under the adiabatic condition of Ωt≥30π.

[0110] Specifically, the second operation instruction is a superadiabatic weaving operation, and the superadiabatic weaving operation is a non-transition information exchange between the two ground states under a non-adiabatic condition of Ωt<30π.

[0111] The adiabatic operation instruction refers to the operation instruction under the adiabatic condition. The adiabatic condition usually requires the operation speed to be slow enough to ensure that the system is always in the ground state or close to the ground state during the operation. Ω is the frequency of the operation, and t is the time of the operation.

[0112] Among them, superadiabatic weaving operation refers to the weaving operation under non-adiabatic conditions, which usually require a faster operation speed to achieve more efficient quantum operations.

[0113] Adiabatic auxiliary items are additional items to enhance or optimize adiabatic operation, which may include additional control parameters or operation steps, such as additional laser fields or magnetic fields. By adding adiabatic auxiliary items, the efficiency and accuracy of the operation can be improved, ensuring that the system remains in the ground state or close to the ground state during operation.

[0114] For example, in a tripod structure implementation, microwaves are used in actual applications. A total of three microwaves are required to operate a tripod configuration. The three microwaves are in the form of The Hamiltonian is in the form of H = Ω1|1><4|+Ω2|2><4|+Ω3|3><4|+hc, and the non-Abelian braiding operator instruction is

[0115] Therefore, according to the obtained non-Abelian operator, the information exchange of the two ground states can be obtained, and the corresponding upper and lower weaving can be defined according to the phases of the corresponding two ground states. If the phase difference Δ after the exchange is greater than 0 than that before the exchange, it is an upper cross weaving, and if Δ<0, it is a lower cross weaving. The purpose of this operation is to distinguish the weaving order in the crossing process, and to distinguish weaving and state flipping.

[0116] Among them, the expression of superadiabatic operation can be obtained according to the adiabatic operation, and its corresponding Hamiltonian is expressed as in n represents the n-fold degenerate state, α and β represent different eigenstates under an eigenvalue, and the corresponding auxiliary adiabatic acceleration term can be obtained according to calculation.

[0117] Can be as Figure 2E As shown, Figure 2E Schematic diagram of the two ground state upper and lower cross weaving of a tripod configuration, where (a) is the upper weaving and (b) is the lower weaving.

[0118] Therefore, the super-adiabatic operation instruction by adding the auxiliary adiabatic acceleration term is selected depending on the adiabatic acceleration instruction. There are different adiabatic acceleration terms for different parameters, which can enable the two ground states to realize non-Abelian weaving under adiabatic conditions without satisfying the adiabatic conditions, realize information exchange between the two ground states, and thus increase the feasibility of the operation.

[0119] It can be seen that in this embodiment, information exchange between ground states in a quantum system can be systematically realized, that is, more efficient quantum information processing can be achieved while maintaining topological protection. Superadiabatic quantum weaving provides a method for performing quantum operations under non-adiabatic conditions.

[0120] In one embodiment, based on the second operating instruction, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving, including: based on the second operating instruction and a preset weaving operator, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving, wherein the preset weaving operator is obtained by a preset Hamiltonian.

[0121] The second operation instruction is a superadiabatic braiding operation. The second operation instruction provides operation steps and control parameters, and the braiding operator describes the interaction between quantum states.

[0122] Among them, the preset braiding operator is obtained by the preset Hamiltonian, and the Hamiltonian is the energy operator of the quantum system, which describes the energy structure and interaction of the system.

[0123] The expression of the preset compilation operator can be: ― iHt H is the Hamiltonian, which describes the total energy of the system, t is the time, and i is the imaginary unit.

[0124] Among them, the weaving operation is to operate on two basis states through the weaving operator to realize the information exchange between the basis states.

[0125] Specifically, superadiabatic quantum braiding refers to quantum braiding operations performed under non-adiabatic conditions (when the operation speed is fast). Through the second operation instruction and the preset braiding operator, information exchange between the ground states can be achieved in a shorter time, thereby improving the operation efficiency.

[0126] For example, different superadiabatic terms can be added to perform adiabatic acceleration for different weaving processes, see Figure 2F The selection is to accelerate G2 first and then G1, which is the same as the selected knitting order. Figure 2GThe selected weaving order is G1G2, and the acceleration order is also this. It can be seen from the time that the time required for adiabatic weaving and superadiabatic weaving is different. Superadiabatic weaving only takes a very short time to complete. At this time, ΩT=π. The following is an example of the adiabatic acceleration term for G1:

[0127] The parameters θ and φ vary with Figure 2D Select Same.

[0128] It can be seen that in this embodiment, information exchange between ground states in a quantum system can be systematically realized.

[0129] In one embodiment, based on the second operating instruction and the preset weaving operator, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing super-adiabatic quantum weaving, including: setting parameters for the two ground states to obtain amplitude and phase information corresponding to each of the two ground states, wherein the amplitude corresponding to each ground state is different, and there is a phase difference in the phase information corresponding to each of the two ground states; based on the second operating instruction and the preset weaving operator, a weaving operation is performed on the amplitude and phase information corresponding to each of the two ground states to obtain information exchange between the two ground states, thereby realizing super-adiabatic quantum weaving.

[0130] The parameters of the two basis states are set, specifically including determining the amplitude and phase of each basis state. Amplitude and phase are important parameters for describing quantum states, where amplitude represents the probability amplitude of the quantum state and phase represents the relative phase of the quantum state.

[0131] Among them, the amplitude of each basis state is different, which means that the probability amplitude of the two basis states is different. There is a phase difference in the phase information of each basis state, which means that there is a relative phase difference between the two basis states.

[0132] It can be seen that in this embodiment, by setting parameters and performing specific operations on the ground state, the accuracy of quantum computing is improved.

[0133] It should be noted that, in each of the above-mentioned embodiments, there is not necessarily a certain order between the above-mentioned steps. A person skilled in the art can understand, based on the description of the embodiments of the present application, that in different embodiments, the above-mentioned steps may have different execution orders, that is, they may be executed in parallel, may be executed interchangeably, and so on.

[0134] As another aspect of the embodiment of the present application, the embodiment of the present application provides a super-adiabatic quantum weaving device. The super-adiabatic quantum weaving device can be a software module, and the software module includes a number of instructions stored in a memory, and the processor can access the memory and call the instructions for execution to complete the super-adiabatic quantum weaving method described in each of the above embodiments.

[0135] See also Figure 3 , Figure 3 Schematic diagram of the structure of a super-insulating quantum weaving device provided in an embodiment of the present application. Figure 3 As shown, it is characterized in that the super-insulating quantum weaving device comprises:

[0136] An acquisition unit 301 is used for acquiring a preset atomic ensemble, wherein the preset atomic ensemble consists of 87Rb atoms;

[0137] A construction unit 302, configured to construct at least one tripod structure according to the preset atomic ensemble;

[0138] A determination unit 303, configured to determine the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian;

[0139] A selection unit 304 is used to select two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal;

[0140] The operation unit 305 is used to perform a weaving operation on the two ground states to obtain information exchange between the two ground states and realize superadiabatic quantum weaving.

[0141] This method uses 87 Superadiabatic quantum weaving of the Rb atomic ensemble can complete non-Abelian weaving in a shorter time than before, that is, quickly complete the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space to support higher-dimensional quantum computing. Due to the use of superadiabatic conditions, the impact of decoherence on the quantum system can be significantly reduced, making quantum information processing more stable, and quickly completing the information exchange between the two ground states, so that complex quantum logic operations can be realized in a wider state space, supporting higher-dimensional quantum computing.

[0142] In one embodiment, in the determining the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian, the determining unit 303 is further used to: obtain target angle information; use the target angle information as a query identifier to perform an interaction value query in a preset data table to obtain an interaction value set; obtain a preset Hamiltonian based on the interaction value set and a first preset formula; determine multiple ground states and multiple excited states based on the preset Hamiltonian; and determine the total number of ground states corresponding to the at least one Tripod structure based on the multiple ground states and the multiple excited states.

[0143] In one embodiment, in performing a weaving operation on the two basis states to obtain information exchange between the two basis states and realize superadiabatic quantum weaving, the operation unit 305 is further used to: obtain a first operation instruction for the two basis states; add an adiabatic auxiliary item to the first operation instruction to obtain a second operation instruction; based on the second operation instruction, perform a weaving operation on the two basis states to obtain information exchange between the two basis states and realize superadiabatic quantum weaving.

[0144] In one embodiment, the first operation instruction is an adiabatic operation instruction, and the adiabatic weaving operation is a non-transition information exchange between the two ground states under the adiabatic condition of Ωt≥30π.

[0145] In one embodiment, the second operation instruction is a superadiabatic weaving operation, and the superadiabatic weaving operation is a non-transition information exchange between the two ground states under a non-adiabatic condition of Ωt<30π.

[0146] In one embodiment, in the step of performing a weaving operation on the two ground states based on the second operation instruction to obtain information exchange between the two ground states and realize superadiabatic quantum weaving, the operation unit 305 is further used to: perform a weaving operation on the two ground states based on the second operation instruction and a preset weaving operator to obtain information exchange between the two ground states and realize superadiabatic quantum weaving, wherein the preset weaving operator is obtained by a preset Hamiltonian.

[0147] In one embodiment, in the process of performing a weaving operation on the two ground states based on the second operation instruction and the preset weaving operator to obtain information exchange between the two ground states and realize superadiabatic quantum weaving, the operation unit 305 is further used to: set parameters for the two ground states to obtain amplitude and phase information corresponding to each of the two ground states, the amplitude corresponding to each ground state is different, and there is a phase difference in the phase information corresponding to each of the two ground states; based on the second operation instruction and the preset weaving operator, perform a weaving operation on the amplitude and phase information corresponding to each of the two ground states to obtain information exchange between the two ground states and realize superadiabatic quantum weaving.

[0148] The super-adiabatic quantum weaving device can also be constructed by hardware devices. For example, the super-adiabatic quantum weaving device can be constructed by one or more chips, and each chip can work in coordination with each other to complete the super-adiabatic quantum weaving method described in each of the above embodiments. For another example, the super-adiabatic quantum weaving device can also be constructed by various logic devices, such as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), a single-chip microcomputer, an ARM (Acorn RISC Machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

[0149] It should be noted that the above-mentioned super-adiabatic quantum weaving device can execute the super-adiabatic quantum weaving method provided in the embodiment of the present application, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in the embodiment of the super-adiabatic quantum weaving device, please refer to the super-adiabatic quantum weaving method provided in the embodiment of the present application.

[0150] See also Figure 4 , Figure 4 4 is a schematic diagram of a computer device provided in an embodiment of the present application. The computer device includes one or more processors 41 and a memory 42. The memory 42 is connected to the one or more processors 41, for example, connected to the processor 41 via a bus.

[0151] The processor 41 is configured to support the computer device to perform the corresponding functions in the method in the above method embodiment. The processor 41 can be a central processing unit (CPU), a network processor (NP), a hardware chip or any combination thereof. The above hardware chip can be an application specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.

[0152] The memory 42 is used to store program codes, etc. The memory 42 may include a volatile memory (VM), such as a random access memory (RAM); the memory 42 may also include a non-volatile memory (NVM), such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 42 may also include a combination of the above-mentioned types of memories.

[0153] The memory 42 can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the vehicle diagnostic method in the embodiment of the present application. The processor 41 executes the various functional applications and data processing of the vehicle diagnostic method and computer equipment by running the non-volatile software programs, instructions and modules stored in the memory, that is, realizes the functions of the vehicle diagnostic method and various modules or units of the computer equipment provided in the above method embodiment.

[0154] The memory 42 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function. The data storage area may store data created according to the use of the vehicle diagnostic device, etc. In some embodiments, the memory 42 may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the vehicle diagnostic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0155] The one or more modules are stored in the memory, and when executed by the one or more processors, the super-adiabatic quantum weaving method in any of the above method embodiments is executed, for example, the method steps described in the above method embodiments are executed to realize the functions of the modules described in the above device embodiments.

[0156] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method described in the above embodiment.

[0157] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0158] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A super-insulating quantum weaving method, characterized in that: include: Get a preset atomic ensemble, the preset atomic ensemble is composed of 87 Rb atomic composition; Constructing at least one tripod structure according to the preset atomic ensemble; Determine the total number of ground states corresponding to the at least one tripod structure based on a preset Hamiltonian; Selecting two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal; A weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving.

2. The method according to claim 1, characterized in that The determining the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian comprises: Get target angle information; Using the target angle information as a query identifier, performing an interaction value query in a preset data table to obtain an interaction value set; According to the interaction value set and the first preset formula, a preset Hamiltonian is obtained; Determining a plurality of ground states and a plurality of excited states according to the preset Hamiltonian; According to the multiple ground states and the multiple excited states, the total number of ground states corresponding to the at least one Tripod structure is determined.

3. The method according to claim 1, characterized in that The performing of a weaving operation on the two ground states to obtain information exchange between the two ground states and realize superadiabatic quantum weaving includes: Acquire a first operation instruction for the two base states; Adding an adiabatic auxiliary item to the first operation instruction to obtain a second operation instruction; Based on the second operation instruction, a weaving operation is performed on the two base states to obtain information exchange between the two base states, thereby realizing superadiabatic quantum weaving.

4. The method according to claim 3, characterized in that The first operation instruction is an adiabatic operation instruction, and the adiabatic weaving operation is to perform non-transition information exchange between the two ground states under the adiabatic condition of Ωt≥30π.

5. The method according to claim 3, characterized in that: The second operation instruction is a superadiabatic weaving operation, and the superadiabatic weaving operation is a non-transition information exchange between the two ground states under a non-adiabatic condition of Ωt<30π.

6. The method according to claim 3, characterized in that The method of performing a weaving operation on the two base states based on the second operation instruction to obtain information exchange between the two base states and realize superadiabatic quantum weaving includes: Based on the second operation instruction and the preset weaving operator, a weaving operation is performed on the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving, wherein the preset weaving operator is obtained by a preset Hamiltonian.

7. The method according to claim 6, characterized in that The method of performing a weaving operation on the two base states based on the second operation instruction and the preset weaving operator to obtain information exchange between the two base states and realize superadiabatic quantum weaving includes: Setting parameters for the two base states to obtain amplitude and phase information corresponding to each of the two base states, wherein the amplitudes corresponding to each of the two base states are different, and there is a phase difference in the phase information corresponding to each of the two base states; Based on the second operation instruction and the preset weaving operator, a weaving operation is performed on the amplitude and phase information corresponding to each of the two ground states to obtain information exchange between the two ground states, thereby realizing superadiabatic quantum weaving.

8. A super-insulating quantum weaving device, characterized in that: The device comprises: An acquisition unit, used for acquiring a preset atomic ensemble, wherein the preset atomic ensemble consists of 87Rb atoms; A construction unit, used for constructing at least one tripod structure according to the preset atomic ensemble; A determination unit, configured to determine the total number of ground states corresponding to the at least one Tripod structure based on a preset Hamiltonian; A selection unit, used for selecting two ground states from the total number of ground states, wherein the two ground states include adjacent common states of Tripod structures, and the probability amplitudes and initial phases of the two ground states are not equal; The operation unit is used to perform weaving operation on the two ground states to obtain information exchange between the two ground states and realize superadiabatic quantum weaving.

9. A computer device, characterized in that: The method comprises a memory and a processor, wherein the memory is connected to the processor, and the processor is used to execute one or more computer programs stored in the memory. When the processor executes the one or more computer programs, the computer device implements the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 7.

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