109 results about "Quantum information processing" patented technology

A control system for a network of quantum systems operates the network to perform quantum informatics processing. The control system includes an entanglement scheduler configured to identify operations for which entanglement of two or more of the quantum systems is desired, identify plural potential entanglement attempts for generating the entanglement; and schedule at least some of the potential entanglement attempts to be performed to generate the entanglement for at least one of the operations. The entanglement scheduler may use direct entanglement, entanglement swapping and / or quantum teleportation approaches to generate the entanglement. The entanglement scheduler may schedule probabilistic entanglement attempts based at least in part on the probability of success of the entanglement attempts. The entanglement scheduler may generate entanglement to support plural branches of a quantum informatics process and / or to respond to events occurring while the quantum informatics process is executing.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to a double individual-addressing multi-beam Raman system for use in QIP systems. A technique is described in which a first multi-channel modulator (MCM), a first telecentric zoom lens, and a first interleaver that form a first optical path of the Raman system that receives a first array of beams and adjusts the first array of beams to individually address atomic-based qubits in a chain from a first direction. Moreover, a second MCM, a second telecentric zoom lens, and a second interleaver form a second optical path of the Raman system that receives a second array of beams and adjusts the second arrays of beams to individually address the atomic-based qubits in the chain from a second direction different from the first direction.

The invention discloses an awareness perception quantum gravitational nerve acceleration unified computing platform and method based on formalized verification, and belongs to the field of high-performance computing, medical AI and quantum information processing. A quantum gravitational coupling neural processing unit (QGCNPU); a consciousness information integral calculation core (phi ICC); formalizing a receipt chain verifier (FRCV); and the mirror reflection symmetry correction module (MRSCM) is used for eliminating the continuous projection mistake and the discrete Boolean mistake through topological equivalence verification of a local observer and a global GodCam visual angle. The system adopts an FPGA + ASIC + quantum processor three-layer heterogeneous architecture, and supports real-time pathological modeling (precision gt; gt) of neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and ALS; 99.7%), drug target discovery (acceleration by 50 times) and consciousness state monitoring (time resolution lt; and meanwhile, the mathematical proving performance and the clinical auditing performance of the calculation process are ensured, and the requirements of the global 152 billion dollar neural science and technology market and the 89 billion dollar quantum calculation industry are met.

Aspects of the present disclosure relate generally to systems and methods for detecting change in images using a quantum information processing (QIP) system. The method includes implementing a quantum circuit in the QIP system, the quantum circuit comprising at least an ancilla qubit denoted as |a> and qubits denoted as image qubit conditions on a |0> state and a |1> state of the ancilla qubit |a>. The method also includes loading a reference image and a test image onto image qubits controlled on the |0> state and the |1> state of the ancilla qubit |a> in the quantum circuit. The method further includes determining a state of the image qubits after measuring |1> on the ancilla qubit for a predetermined number of times, wherein the reference image is detected to be different from the test image when the state of the ancilla qubit measures |1>.

A quantum information processing system may comprise a quantum mechanical system capable of exhibiting transitions between a plurality of eigenstates; and a quantum control environment, wherein the quantum control environment eigenstates is capable of exhibiting modes from a continuous spectrum and is coupled to the quantum mechanical system at at least one coupling location, wherein said coupling is characterized with a set of parameters of the quantum mechanical system, and wherein a selected combination of the at least one coupling location and the set of parameters intentionally causes to suppress at least one of said transitions when intentionally changing a state of the quantum mechanical system by the quantum control environment.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to the use of qubit feedback for noise cancellation in quantum elements and / or quantum computations in QIP systems.

A photonic integrated circuit comprising one or more waveguides comprising a second order non-linearity configured to operate on optical pulses each having a pulse length shorter than 1000 optical cycles, as measured at their full width at half maximum. The circuit is configured to generate one or more quantum states carried by one or more of the optical pulses, manipulate one or more of the quantum states, and / or measure one or more of the quantum states.

Aspects of the present disclosure relate generally to systems, devices, methods, and computer-program products for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, for circuit embedding in a quantum computer having reconfigurable qubit registers.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems. To optimize the performance of QIP systems or quantum computers in terms of both fidelity and algorithm uptime or throughput, described are techniques to stabilize continuous and discrete errors from drifting and / or noisy secondary observables to achieve long term stable operation.

Provided herein are techniques for developing fault-tolerant quantum computation (FTQC) systems by leveraging quantum error correction (QEC) strategies in a neutral atom quantum information processing system. The techniques described herein reuse and replenish qubits in the quantum circuit during operation. To implement such mid-circuit qubit reuse, the quantum information processing system described herein uses a "spin-to-position" qubit conversion method for quantum state measurement. This spin-to-position qubit conversion allows non-destructive, loss-resolved qubit readout.

Entanglement is a unique quantum information processing (QIP) feature. Entanglement can be used to implement quantum sensors with improved sensitivity over classical sensors. Disclosed are systems and techniques for entanglement assisted (EA) bistatic quantum radar applications and EA joint monostatic-bistatic quantum radar applications. An EA bistatic quantum radar can include a wideband entangled source used as a transmitter, and an EA detector. An EA monostatic quantum radar can include a wideband entangled source integrated or combined with an EA detector. Optical phase conjugation can be performed on a transmitter side but not on the one or more receiver sides. Target detection can be performed based on analyzing reflected signal photons against locally stored idler photons that are entangled with the signal photons with the help of balanced homodyne detector.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to provide stabilization of a position of an ion trap via displacement of one or more piezoelectric elements.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to a technique for the fabrication of laser-ablation targets used in atomic sources for QIP systems that are based on atomic-based qubits.

This quantum device two-dimensionally arranges quantum dot-type quantum bits formed by a field plate. The quantum device comprises: a semiconductor layer having a plurality of regions in which electrons are stored; and a field plate which is disposed on the semiconductor layer and which extends in a first direction and stores electrons in the plurality of regions by forming an electric field through application of a voltage thereto. The quantum device enables two-dimensional coupling and movement of each quantum bit by providing a weak coupling part to the field plate, and can perform quantum information processing that requires a large number of quantum bits.

The invention relates to a chiral perovskite semiconductor circular polarization luminescence enhancement structure and a preparation method and application thereof, and belongs to the technical field of chiral photoelectric semiconductor materials and micro-nano devices. According to the structure, two layers of chiral perovskite semiconductor nanosheets are stacked through a controllable torsion angle to form a homojunction, and the torsion angle ranges from 0 degree to 90 degrees. According to the present invention, by adjusting the interlayer torsion angle, the continuous regulation and the significant enhancement of the circular polarization light emitting polarization degree are achieved, and especially during the parallel stacking (0 degree torsion angle), the circular polarization light emitting polarization degree is improved by 3 times compared with the single nanosheet and the vertical stacking (90 degree torsion angle). The enhancement effect is derived from inter-layer coupling dependent on a torsion angle, spin selective charge transfer is promoted, exciton binding energy is enhanced, and electron-phonon scattering is inhibited. The invention provides an effective way for regulating and controlling the polarization degree through the torsion angle, and is suitable for the fields of circular polarization luminescent devices, spin optoelectronic devices, quantum information processing and the like.

A building block (1) for a quantum information processing system comprises a superconducting qubit (2) having a Josephson junction (5) connected between two superconducting electrodes (3, 4). The two superconducting electrodes (3, 4) are coaxial and coplanar. The building block (1) further comprises a control line (6) coupled to the superconducting qubit (2) and arranged to control a state of the superconducting qubit (2), and / or a readout element (8) coupled to the superconducting qubit (2) and arranged to measure a state of the superconducting qubit (2). The control line (6) and / or the readout element (8) are arranged out-of-plane with respect to the two superconducting electrodes (3, 4).

The inventors have developed techniques to facilitate the operation of a quantum oscillator with increased bit-flip lifetimes by inducing an energetic asymmetry between qubit states. The technology may be used for the storage of quantum information or for providing a system for quantum information processing with longer bit flip lifetimes. The technology includes a qubit along with corresponding drives for controlling the energetic barrier and energetic asymmetry between the energetic potentials for each qubit state.

The invention discloses a spin-state optically readable light quantum information processing material and a preparation method and application thereof. The light quantum information processing material comprises host molecules, an annihilation agent and a dispersion medium, the host molecule is an amino-anthraquinone derivative and is selected from a structure shown in the specification; the triplet energy of the annihilation agent is less than or equal to the triplet energy of the host molecule, and the maximum luminescence peak wavelength of the annihilation agent is not overlapped with the luminescence peak of the host molecule; the dispersion medium is selected from a chromatographically pure solvent or polymer; according to different dispersion media, the light quantum information processing material is in a liquid state and a solid state.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to the use of performing automated symmetry verification on a quantum circuit. An exemplary method includes obtaining a quantum circuit with a compiled quantum program corresponding to a defined quantum computation; determining types of gates implemented on the quantum circuit; tracking allowed output states of the quantum circuit from an initial state based on the determined type of gates implemented on the quantum circuit; and detecting an error in the quantum circuit by identifying a possible output state that does not correspond to the subset of allowed output states.

The application discloses a configuration acquisition method and system of a five-setting CHSH measuring device realizing maximum violation, relates to the technical field of quantum information processing, and comprises the following steps: S1, acquiring the probability amplitude of a two-particle pure state of a pair of two-dimensional non-maximally entangled particles A and B and calculating the coincidence degree; S2, constructing a correlation matrix based on the coincidence degree, and mapping the measurement vector of the particle B from a Bloch spherical surface to an ellipsoidal surface by using the correlation matrix; S3, taking five points on the same plane on the ellipsoidal surface as the vertices of a five-pointed star, and equivalently taking the perimeter formula of the five-pointed star to the maximum value formula of the correlation function; S4, obtaining the maximum perimeter value by traversing the positions of the vertices of the five-pointed star; S5, obtaining the optimal measurement configuration by the measurement vector of the particle B and the measurement vector of the particle A; and S6, configuring a quantum measuring device to measure the particles A and B. The application converts the maximum value problem of the five-setting CHSH correlation function into the solving problem of the maximum perimeter of the five-pointed star inscribed in the ellipsoidal surface, and the optimal measurement scheme is obtained by simple numerical fitting.

A system and method are provided for compiling a bare quantum-logic circuit. The method includes receiving the bare quantum-logic circuit including multiple encoded operations and multiple syndrome measurements, where each encoded operation and each syndrome measurement may be associated with an input and / or output quantum error correction code; interleaving multiple random stabilizers and / or multiple random stabilizers associated with multiple random operations between adjacent encoded operations, between adjacent syndrome measurements, and / or between adjacent encoded operations and syndrome measurements, respectively, to provide one or more modified quantum-logic circuits logically equivalent to the bare quantum-logic circuit; and outputting the one or more modified quantum-logic circuits to a quantum information processor or a simulator of quantum information processor for execution, where when executed, the one or more modified quantum-logic circuits enable a noise-tailored outcome, having reduced coherent and non-unital logical noise.

Provided is an apparatus and method in which, in a first region that traps atoms in a first state by a first light and a magnetic field, atoms are optically pumped into a second state and thereby trapped by magnetic force. The atoms in the second state trapped in the first region are moved from the first region to a second region by force of gravity or the radiation pressure from second light. In the second region, the second light is radiated on the atoms in the second state, and the atoms in the second state are thereby cooled. The atoms are optically pumped into a third state that is insensitive to magnetic fields and thereby released from a magnetic trap and transported to a post device by a moving optical lattice or an optical dipole guide.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to a double individual-addressing multi-beam Raman system for use in QIP systems. A technique is described in which a first muti-channel modulator (MCM), a first telecentric zoom lens, and a first interleaver that form a first optical path of the Raman system that receives a first array of beams and adjusts the first array of beams to individually address atomic-based qubits in a chain from a first direction. Moreover, a second MCM, a second telecentric zoom lens, and a second interleaver form a second optical path of the Raman system that receives a second array of beams and adjusts the second arrays of beams to individually address the atomic-based qubits in the chain from a second direction different from the first direction.

The embodiment of the application relates to the technical field of quantum information, and discloses a novel narrow-line-width entangled light source, a working method and a quantum information processing system. In the application, a pump light source with independently adjustable power and line width is directly combined with an entanglement generation module based on a beam splitter, single-polarization pump light with independently and continuously adjustable power and line width can be generated, and high-quality entangled states are stably generated by using the pump light through a polarization crosstalk-free splitting scheme based on a beam splitter. Therefore, the adaptation capability of the entangled light source to different application scenarios (such as quantum key distribution and entanglement exchange) and the purity of the entangled states are significantly improved.

The invention provides an adjustable chiral liquid crystal quantum gate, a preparation method thereof and a quantum state preparation device. The chiral liquid crystal quantum gate is realized based on a chiral liquid crystal layer, the chiral liquid crystal layer comprises nematic liquid crystals, a right-handed dopant and a left-handed dopant, the chiral liquid crystal layer has a periodic right-handed spiral structure, and the screw pitch is changed along with the temperature change; when the chiral liquid crystal quantum gate acts on a single-photon quantum bit, the chiral liquid crystal quantum gate rotates around the z axis of the Bloch ball, and on-demand output of multiple single-photon quantum states is achieved; when the chiral liquid crystal quantum gate acts on an entangled photon pair, the chiral liquid crystal quantum gate realizes dynamic switching among various polarization entangled states while keeping non-local entanglement of the entangled photon pair, and on-demand output of various entangled quantum states is realized. Dynamic regulation and control of incident light polarization state is realized based on the chiral liquid crystal material, and the chiral liquid crystal material can be further applied to quantum state regulation and control in quantum information processing, so that a soft material optical element is successfully introduced into the field of quantum optics.

This invention belongs to the field of quantum optics and quantum information processing technology, and discloses an integrated high-order orbital angular momentum entangled photon source system and its generation method. The system includes a pump laser, a polarization preprocessing module, an entanglement generation module, a wavefront and mode control module, and a detection and post-processing module. This design overturns the "post-stage cascaded" mode commonly used in existing technologies (i.e., adding OAM modulation devices to independent, separate modules); by placing OAM modulation inside the interferometer, the optical path is greatly shortened, making the entire device structure more compact and highly integrated. This avoids the complex alignment and high sensitivity to vibration / temperature drift caused by multiple independent modules, fundamentally enhancing the system's robustness and long-term stability. Simultaneously, it allows for arbitrary adjustment of the topological charge, reducing system complexity and potential losses.

A quantum bit array according to the present invention comprises: a first gate electrode; a second gate electrode; a first barrier gate electrode and a second barrier gate electrode which are adjacent to the second gate electrode; a third barrier gate electrode which is adjacent to the first gate electrode; a semiconductor layer; and a charge sensor which reads out, as an output current, the number of electrons stored in the semiconductor layer below the second gate electrode. The quantum bit array reads, with the charge sensor, an output current that reflects the state of electrons in the semiconductor layer below the second gate electrode when movement of electrons stored in the semiconductor layer below the first gate electrode and the second gate electrode is controlled between the first gate electrode and the second gate electrode, and reads the spin state of electrons stored in the semiconductor layer below the first gate electrode on the basis of the output current.

The invention discloses a polar region cloud layer detection method and device based on day and night adaptive multi-mode fusion. The method comprises the following steps: determining a polar region time period mode according to a solar altitude and environment illumination intensity of a polar region observation point; in the polar day mode, collecting a multi-angle polarization thermal image sequence and a visible light image, generating a cloud probability distribution map, and generating a polar day optical thickness map in combination with a physically guided thickness inversion model; in an extreme night mode, quantum radar echoes and terahertz radiation spectrums are collected, a cloud layer vertical distribution probability graph is generated, and an extreme night three-dimensional cloud mask is generated in combination with radar distance-Doppler constraint; and generating a polar region cloud layer full-time detection result based on the polar day optical thickness map and the polar night three-dimensional cloud mask. According to the invention, high-precision and all-weather detection of the polar region cloud is realized by introducing sensing technologies such as quantum radar and terahertz radiation spectrum and combining deep learning and quantum information processing methods.

Aspects of the present disclosure relate generally to systems, devices, methods, and computer-program products for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, for configuration of a resource graph for a quantum computer having reconfigurable qubit registers.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, to ion entanglement. Some examples include generating a fused resource-state between atomic qubits of non-neighboring parcels such that the atomic qubit share a Bell state.