Method for determining working point of quantum bit in quantum chip and quantum computer

Abstract

The application discloses a quantum chip quantum bit working point determination method and a quantum computer, and proposes the quantum bit working point determination method which considers the whole chip and can meet the demand of large-scale quantum chips and make up for the blank of the prior art. In addition, although the scheme of sequentially obtaining the working point of each quantum bit according to the distance from the center position of the physical topological structure of each quantum bit from small to large is adopted, since the actual parameters of a quantum bit located in the middle position deviate greatly from the design parameters compared with the surrounding quantum bits, no solution is obtained under the current constraints of the surrounding quantum bits, and the local working point reacquisition scheme of the application effectively solves the problem.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of quantum computing, and particularly to a method for determining a quantum bit operating point in a quantum chip and a quantum computer. BACKGROUND

[0002] Quantum computing and quantum information is a cross-discipline based on the principles of quantum mechanics to achieve computing and information processing tasks, which has a very close relationship with quantum physics, computer science, information science and other disciplines. In the past two decades, it has developed rapidly. Quantum algorithms based on quantum computers for factorization and unstructured search scenarios have shown much better performance than existing algorithms based on classical computers, and this direction has been expected to exceed the existing computing power. Since quantum computing has the potential to far exceed the performance of classical computers in solving certain problems, in order to realize a quantum computer, a quantum chip containing a sufficient number and quality of quantum bits is needed, and quantum logic gate operations and reading with high fidelity on quantum bits are required. Quantum chip is equivalent to CPU for traditional computer, and quantum chip is the core component of quantum computer, which is the processor for executing quantum computing. Before each quantum chip is formally put into use, the parameters of the quantum bits in the quantum chip need to be tested and characterized.

[0003] In order to complete as many calculations as possible within the limited lifetime of each quantum bit in a quantum chip, it is necessary to implement quantum bit logic gates as quickly as possible. Generally, the execution time of quantum bit logic gates is three to four orders of magnitude faster than the lifetime of quantum bits. However, fast quantum bit logic gate operations can cause quantum bit logic gates to make mistakes when executing. There are many reasons for quantum bit logic gate errors, such as parasitic coupling between nearest neighbor and next nearest neighbor quantum bits, two-level system (TLS) defects, parasitic microwave modes, coupling with control lines and readout resonators, frequency control electronics noise, frequency control pulse distortion, microwave control pulse distortion, and microwave carrier leakage. Among them, residual ZZ coupling and XY crosstalk are the two main reasons for gate execution errors. Most of these factors can be addressed by adjusting the operating frequency of the quantum bit, i.e., the operating point. When each quantum bit in the quantum chip is at the appropriate operating point, the effects of residual ZZ coupling and XY crosstalk can be effectively reduced. Currently, in order to improve the accuracy of quantum chip in executing quantum computing tasks, the operating point of a few quantum bits is generally considered, and there is a lack of solutions that consider the quantum chip as a whole. The existing solutions are feasible when the number of quantum bits in the quantum chip is small, such as a few quantum bits or a dozen quantum bits. However, in the foreseeable future, the number of quantum chips will certainly increase, and at that time, the existing solutions will not be able to meet the needs of large-scale quantum chips.

[0004] Therefore, it is necessary to propose a quantum bit operating point determination scheme that considers the quantum chip as a whole.

[0005] It should be noted that the information disclosed in the background section of the present application is only intended to deepen the understanding of the general background of the present application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0006] The purpose of the present application is to provide a quantum bit operating point determination method in a quantum chip and a quantum computer, which solves the problem that the existing solutions cannot meet the needs of large-scale quantum chips.

[0007] In order to solve the above technical problems, the present application provides a quantum bit operating point determination method in a quantum chip, comprising:

[0008] According to the order from small to large of the distance between each quantum bit and the center position of the physical topology structure, the operating point of each quantum bit is obtained in sequence, the physical topology structure is used to reflect the physical layout of quantum bits in the quantum chip, and the operating point of the quantum bit is the operating frequency of the quantum bit.

[0009] When the operating point of the first qubit cannot be obtained, the operating points of a plurality of qubits around the first qubit and the first qubit are re-obtained after the operating points of all qubits in the quantum chip have been traversed, and the first qubit is any qubit in the quantum chip.

[0010] Optionally, the re-obtaining of the operating points of the plurality of qubits around the first qubit and the first qubit comprises:

[0011] According to the distance from the first qubit and the plurality of qubits around the first qubit to the center position of the physical topology from small to large, the operating points of each qubit are re-obtained in sequence.

[0012] Optionally, the determination method further comprises:

[0013] A preset number of times of re-obtaining the operating points is set.

[0014] After the number of times of re-obtaining the operating points exceeds the preset value, the operation of re-obtaining the operating points is stopped.

[0015] Optionally, the determination method further comprises:

[0016] When the result of re-obtaining the operating points at a certain time is the same as the result of re-obtaining the operating points at any previous time, the operation of re-obtaining the operating points is stopped.

[0017] Optionally, the result meeting the requirement is selected from the results of re-obtaining the operating points, and the obtaining of the operating points of the qubits in the quantum chip is completed.

[0018] Optionally, the determination method further comprises:

[0019] When the operating points of all qubits in the quantum chip have been obtained in the result of re-obtaining the operating points, the operation of re-obtaining the operating points is stopped.

[0020] Optionally, the operating points of the qubits close to the center position of the physical topology are obtained first, and the operating points of the qubits far from the center position of the physical topology are obtained later.

[0021] Optionally, the plurality of qubits around the first qubit comprises all qubits having a neighboring relationship with the first qubit in the quantum chip.

[0022] Based on the same inventive concept, the application further provides a determination device for operating points of qubits in a quantum chip, comprising:

[0023] a working point acquisition unit configured to acquire, in order, working points of each of the quantum bits according to an order from small to large of distances of each of the quantum bits to a center position of a physical topology structure, the physical topology structure being used to reflect a physical layout of the quantum bits in the quantum chip, the working point of the quantum bit being a working frequency of the quantum bit;

[0024] a local re-acquisition unit configured to, when the working point of the first quantum bit cannot be acquired, re-acquire the working points of the first quantum bit and a plurality of quantum bits around the first quantum bit after the working points of all the quantum bits in the quantum chip have been acquired.

[0025] Based on the same inventive concept, the present application further provides a quantum control system using the method for determining the working points of the quantum bits in the quantum chip according to any one of the above feature descriptions or the device for determining the working points of the quantum bits in the quantum chip according to the above feature descriptions.

[0026] Based on the same inventive concept, the present application further provides a quantum computer comprising the quantum control system according to the above feature descriptions.

[0027] Based on the same inventive concept, the present application further provides a readable storage medium having a computer program stored thereon, the computer program being executable by a processor to implement the method for determining the working points of the quantum bits in the quantum chip according to any one of the above feature descriptions.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] The method for determining the working points of the quantum bits in the quantum chip according to the present application firstly acquires, in order, the working points of each of the quantum bits according to an order from small to large of distances of each of the quantum bits to a center position of a physical topology structure. After the working points of all the quantum bits in the quantum chip have been acquired, if there is a first quantum bit whose working point cannot be acquired, the working points of the first quantum bit and a plurality of quantum bits around the first quantum bit are re-acquired. The method for determining the working points of the quantum bits according to the present application considers the whole chip and can meet the demand of large-scale quantum chips, thus filling the gap in the prior art. In addition, although the working points of each of the quantum bits are acquired in order according to an order from small to large of distances of each of the quantum bits to a center position of a physical topology structure, since a quantum bit at an intermediate position has a larger deviation between an actual parameter and a design parameter compared with surrounding quantum bits, it has no solution under the current constraints of the surrounding quantum bits. The local re-acquisition of the working points according to the present application effectively solves this problem.

[0030] The quantum chip quantum bit working point determination device, the quantum control system, the quantum computer, the readable storage medium, and the quantum chip quantum bit working point determination method proposed in the application belong to the same inventive concept and have the same beneficial effects, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A flowchart of a quantum chip quantum bit working point determination method proposed for an embodiment of the application is shown in the figure.

[0032] Figure 2 A structure diagram of a quantum chip shown in an embodiment of the application is shown in the figure.

[0033] Figure 3 A structure diagram of a quantum chip quantum bit working point determination device proposed for another embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0034] The specific embodiments of the application will be described in more detail below with reference to the accompanying drawings. The advantages and features of the application will be clearer according to the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate, clarify the purpose of assisting the description of the embodiments of the application.

[0035] In the description of the application, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0036] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0037] Please refer to Figure 1 The application embodiment proposes a quantum chip quantum bit working point determination method, which comprises:

[0038] S100: In order from small to large, the working point of each quantum bit is obtained in sequence according to the distance of each quantum bit from the center position of the physical topology structure, the physical topology structure is used to reflect the physical layout of the quantum bits in the quantum chip, and the working point of the quantum bit is the working frequency of the quantum bit.

[0039] S200: When the operating point of the first qubit cannot be obtained, after all the operating points of all qubits in the quantum chip have been traversed, the operating points of several qubits around the first qubit and the first qubit are obtained again. The first qubit is any one of the qubits in the quantum chip.

[0040] Unlike existing technologies, this embodiment proposes a method for determining the operating point of a qubit in a quantum chip. First, the operating point of each qubit is sequentially obtained according to its distance from the center of the physical topology, from smallest to largest. Furthermore, after all the operating points of all qubits in the quantum chip have been traversed, if the operating point of a first qubit cannot be obtained, the operating points of several qubits surrounding the first qubit, as well as the first qubit itself, are re-obtained. This method for determining the operating point of a qubit considers the entire chip and can meet the needs of large-scale quantum chips, filling a gap in existing technologies. Additionally, although the scheme of sequentially obtaining the operating point of each qubit according to its distance from the center of the physical topology, a qubit located in the middle position may have significantly different actual and design parameters compared to its surrounding qubits, making it unsolvable under the current constraints of the surrounding qubits. The local re-obtaining of the operating point scheme in this application effectively solves this problem.

[0041] by Figure 2 Taking the quantum chip shown in the image as an example, Figure 2 The diagram shows the physical topology of a quantum chip containing 36 qubits in one embodiment. Point A is the center of the physical topology. According to the scheme of this application, we sequentially obtain the distance of each qubit in the quantum chip from point A, and then sequentially obtain the operating point of each qubit according to the distance, in ascending order of distance. First, we obtain the operating points of the qubits closest to the center of the physical topology, and then obtain the operating points of the qubits farther from the center. This maximizes the performance of the quantum chip and ensures that qubits whose suitable operating points cannot be determined appear at the edge of the physical topology, effectively improving the resource utilization of the quantum chip. Assuming that in… Figure 2 All qubits of the quantum chip have been traversed, and finally, the qubit Q was found to be... 33 If the operating point cannot be obtained, then the quantum bit Q will be... 33 And the surrounding qubits all regain their operating points. In this embodiment, it is possible to select the area surrounding qubit Q. 33 The surrounding 8 qubits: Q 22 Q23 24 32 34 42 43 44 The eight quantum bits around the quantum bit Q 33 and the nine quantum bits together are re-acquired to the working point. In other embodiments, all quantum bits in a neighborhood relationship with the first quantum bit in the quantum chip can also be selected: Q 23 32 34 43 , without limitation.

[0042] It should be noted that when there are several quantum bits with the same distance from the center position of the physical topology, the corresponding working points are acquired in random order from the several quantum bits. For example, Figure 2 the quantum bits Q 33 34 43 44 , the four quantum bits have equal distances from point A, so the four quantum bits can acquire the corresponding working points in random order, without limitation.

[0043] Specifically, in this embodiment, the re-acquisition of the working point of the first quantum bit and several quantum bits around the first quantum bit includes:

[0044] According to the distance from the center position of the physical topology of the first quantum bit and the several quantum bits around the first quantum bit from small to large, the working point of each quantum bit is re-acquired in turn.

[0045] Still taking the quantum chip in Figure 2 as an example, assuming that the working point of the quantum bit Q 33 cannot be acquired, the quantum bit Q 33 and the quantum bits around it are re-acquired to the working point, and eight quantum bits around the quantum bit Q 33 are selected: Q 22 23 24 32 34 42 43 44 ​​​​​​​​​​​​​​​​​​​We first obtain the distance between the 9 qubits and the center position A of the physical topology structure of the quantum chip, and then re-obtain the working points of the 9 qubits in order from small to large. If it is still found that there are qubits that cannot obtain the working point, then the above scheme is still followed to re-obtain the working point. According to this scheme, the qubits that cannot obtain the working point can be further ensured to be located at the edge position of the quantum chip, and the utilization rate of the quantum chip is further improved.

[0046] Specifically, in the embodiment, the determination method further comprises:

[0047] presetting the number of times of re-obtaining the working point;

[0048] stopping the operation of re-obtaining the working point when the number of times of re-obtaining the working point exceeds the preset value.

[0049] Specifically, in the embodiment, the determination method further comprises:

[0050] stopping the operation of re-obtaining the working point when the result of re-obtaining the working point is the same as the result of any previous re-obtaining of the working point.

[0051] Specifically, in the embodiment, the result meeting the requirement is selected from the results of multiple re-obtaining of the working point to complete the obtaining of the working point of the qubit in the quantum chip.

[0052] Specifically, in the embodiment, the determination method further comprises:

[0053] stopping the operation of re-obtaining the working point when the working point of all qubits in the quantum chip has been obtained in the result of re-obtaining the working point.

[0054] Specifically, in the embodiment, the working point of the qubit close to the center position of the physical topology structure is obtained first, and then the working point of the qubit far from the center position of the physical topology structure is obtained.

[0055] When we assign the working point of the qubit, we mainly consider the residual ZZ coupling and XY crosstalk, which are the two main reasons for the error of gate execution. The residual ZZ coupling refers to the unnecessary coupling that still exists after the coupling between qubits is closed. The coupling between two qubits is a necessary condition for implementing a two-qubit gate, but when the two-qubit gate is not working, the coupling between them needs to be closed to avoid exciting unnecessary terms and ensure calculation accuracy. XY crosstalk refers to the fact that the driving frequency applied to a certain qubit causes non-harmonic driving of other nearby qubits.

[0056] In order to control the influence of XY crosstalk, when the target qubit i is excited, the driving frequency of the target qubit i should be avoided to make the neighboring qubit j change from the 0 state to the 1 state or from the 1 state to the 2 state, and the following constraint is set:

[0057] f i -f j |≥δ A1 ;(1)

[0058] f i -f j -α j |≥δ A2 ;(2)

[0059] Wherein, δ A1 , δ A2 are two threshold values, f i is the frequency of the target qubit i, f j is the frequency of the qubit j, and α j is the anharmonicity of the qubit j. In the present embodiment, δ A1 , δ A2 may be set to 40MHz, and in other embodiments, other values may also be set according to actual conditions, which are not limited herein.

[0060] In order to control the influence of residual ZZ coupling, the residual ZZ coupling between the target qubit i and its diagonal qubit k is considered, and the following constraint is set: Figure 2 For example, assuming that the target qubit i is the qubit Q33, then the diagonal qubit k is Q 22 , Q 24 , Q 42 , Q 44 . We need to control the value of the residual ZZ coupling to be less than a set value to control its influence, and the following constraint is set:

[0061]

[0062] Wherein, g ik is the value of the residual ZZ coupling between the target qubit i and its diagonal qubit k, f k is the frequency of the qubit k, and δ Z1 is a set threshold value. In the present embodiment, δ Z1 may be set to 0.01MHz, and in other embodiments, other values may also be set according to actual conditions, which are not limited herein.

[0063] Through the constraint conditions of the above formula 1, formula 2 and formula 3, the target equation is constructed, and the target equation is:

[0064] Func=-f i ;

[0065] What we need is that, under the above constraints, the closer the frequency of the target qubit to the frequency of its degenerate point, the less noise interference the qubit in the entire quantum chip receives.

[0066] Those skilled in the art can understand that, the working point of all qubits close to the center position of the physical topology structure is preferentially obtained, and then the qubits are less constrained and easier to obtain the working point.

[0067] Based on the same inventive concept, the embodiment of the present application also provides a device for determining a working point of a qubit in a quantum chip, comprising:

[0068] The working point obtaining unit 100 is configured to obtain the working point of each qubit in turn according to the order from small to large of the distance between each qubit and the center position of the physical topology structure, the physical topology structure is used to reflect the physical layout of the qubits in the quantum chip, and the working point of the qubit is the working frequency of the qubit.

[0069] The local re-solution unit 200 is configured to, when the working point of the first qubit cannot be obtained, re-obtain the working point of the first qubit and several qubits around the first qubit after the working points of all qubits in the quantum chip have been traversed, the first qubit being any qubit in the quantum chip.

[0070] It can be understood that the working point obtaining unit 100 and the local re-solution unit 200 can be combined in one device, or any one of the modules can be split into multiple sub-modules, or at least part of the functions of one or more modules in the working point obtaining unit 100 and the local re-solution unit 200 can be combined with at least part of the functions of other modules, and realized in one function module. According to the embodiment of the present application, at least one of the working point obtaining unit 100 and the local re-solution unit 200 can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on chip, a system on substrate, a system on package, an application specific integrated circuit (ASIC), or any other reasonable hardware or firmware that integrates or packages circuits, or a suitable combination of software, hardware and firmware. Or, at least one of the working point obtaining unit 100 and the local re-solution unit 200 can be at least partially implemented as a computer program module, which can execute the functions of the corresponding module when the program is run by a computer.

[0071] Based on the same inventive concept, the embodiment of the present application also proposes a quantum control system, which utilizes the method for determining the working point of a quantum bit in a quantum chip according to any one of the above feature descriptions or the device for determining the working point of a quantum bit in a quantum chip according to the above feature descriptions.

[0072] Based on the same inventive concept, the embodiment of the present application also proposes a quantum computer, which comprises the quantum control system according to the above feature descriptions.

[0073] Based on the same inventive concept, the embodiment of the present application also proposes a readable storage medium, which stores a computer program, and the computer program can realize the method for determining the working point of a quantum bit in a quantum chip according to any one of the above feature descriptions when executed by a processor.

[0074] The readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The readable storage medium can be, for example but is not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include the following: a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device such as punch-cards or punched tape, a holographic storage medium, or any suitable combination of the foregoing. A computer program product, such as the computer program 1120, can be downloaded to the respective computing / processing device from a readable storage medium or to an external computer or external storage device via a network, for example, the Internet, a local area network, a wide area network, and / or a wireless network. The network can comprise copper transmission cables, optical transmission fibers, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives computer program product from the network and forwards the computer program product for storage in a readable storage medium in the respective computing / processing device. The computer program 1120 for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer program 1120 can execute entirely on the user's computing / processing device, partly on the user's computing / processing device, as a stand-alone software package, partly on the user's computing / processing device and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computing / processing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider). In some embodiments, electronic circuitry including, for example, programmable logic circuitry, field-programmable gate array (FPGA), or programmable logic array (PLA) can execute the computer readable program instructions by utilizing state information of the computer readable program instructions to personalize the electronic circuitry, in order to perform aspects of the present application.

[0075] The computer program can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process such that the computer program running on the computer, other programmable data processing apparatus, or other device implements the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0076] The computer program can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process such that the computer program running on the computer, other programmable data processing apparatus, or other device implements the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0077] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", or "specific example" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0078] The above are only preferred embodiments of the present application, and do not have any limiting effect on the present application. Any person skilled in the art can make any form of equivalent replacement or modification, etc. to the technical solutions and technical contents disclosed in the present application without departing from the scope of the technical solutions of the present application, which still belongs to the protection scope of the present application.

Claims

1. A method for determining the operating point of a qubit in a quantum chip, characterized in that, The method comprises: obtaining the working point of each quantum bit in turn according to the distance from each quantum bit to the center position of the physical topology structure from small to large, the physical topology structure being used to reflect the physical layout of the quantum bits in the quantum chip, and the working point of the quantum bit being the working frequency of the quantum bit; when the working point of the first quantum bit cannot be obtained, the working points of the first quantum bit and a plurality of quantum bits around the first quantum bit are re-obtained after the working points of all the quantum bits in the quantum chip have been obtained, the first quantum bit being any quantum bit in the quantum chip.

2. The determination method of claim 1, wherein, The re-obtaining of the working points of the first quantum bit and the plurality of quantum bits around the first quantum bit comprises: re-obtaining the working point of each quantum bit in turn according to the distance from each quantum bit to the center position of the physical topology structure from small to large.

3. The determination method of claim 1, wherein, The method further comprises: presetting the number of times of re-obtaining the working point; stopping the re-obtaining of the working point when the number of times of re-obtaining the working point exceeds the preset value.

4. The determination method of claim 1, wherein, The method further comprises: stopping the re-obtaining of the working point when the result of re-obtaining the working point is the same as the result of any previous re-obtaining of the working point.

5. The determination method according to claim 3 or 4, characterized in that, The result of re-obtaining the working point is selected from a plurality of results of re-obtaining the working point to complete the obtaining of the working point of the quantum bit in the quantum chip.

6. The determination method of claim 1, wherein, The method further comprises: stopping the re-obtaining of the working point when the working points of all the quantum bits in the quantum chip have been obtained in the result of re-obtaining the working point.

7. The determination method of claim 1, wherein, The working point of the quantum bit close to the center position of the physical topology structure is obtained first, and the working point of the quantum bit far from the center position of the physical topology structure is obtained later.

8. The determination method of claim 1, wherein, The plurality of quantum bits around the first quantum bit comprises all the quantum bits having a neighboring relationship with the first quantum bit in the quantum chip.

9. A device for determining the operating point of a qubit in a quantum chip, characterized in that, The method comprises: a working point obtaining unit configured to obtain the working point of each quantum bit in turn according to the distance from each quantum bit to the center position of the physical topology structure from small to large, the physical topology structure being used to reflect the physical layout of the quantum bits in the quantum chip, and the working point of the quantum bit being the working frequency of the quantum bit; a local re-solving unit configured to re-obtain the working points of the first quantum bit and a plurality of quantum bits around the first quantum bit when the working point of the first quantum bit cannot be obtained after the working points of all the quantum bits in the quantum chip have been obtained, the first quantum bit being any quantum bit in the quantum chip.

10. A quantum control system, characterized by, The method for determining the working point of the quantum bit in the quantum chip according to any one of claims 1-8 or the determination device for determining the working point of the quantum bit in the quantum chip according to claim 9 is used.

11. A quantum computer, comprising: The quantum control system according to claim 10 is used.

12. A readable storage medium, having stored thereon a computer program, characterized in that, The computer program is executed by a processor to implement the method for determining the working point of the quantum bit in the quantum chip according to any one of claims 1-8. The computer program is executed by a processor to implement the method for determining the working point of the quantum bit in the quantum chip according to any one of claims 1-8.

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