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EFFICIENT SHADOW TOMOGRAPHY OF PAULI OPERATORS AND LOCAL FERMIONIC OPERATORS WITH TWO-COPY MEASUREMENTS

Resumen de: AU2025403006A1

Methods, systems, and apparatus for estimating expectation values of a quantum state with respect to a set of observables and to a target precision. In one aspect a method includes computing, using multiple physical copies of the quantum state and for each observable in the set of observables, an estimate of a magnitude of the expectation value of the quantum state with respect to the observable; generating, using the estimated magnitudes, an updated set of observables; computing, using the updated set of observables, a classical description of a mimicking quantum state; and performing Bell sampling on a tensor product of a physical copy of the quantum state and a physical copy of the mimicking quantum state to obtain, for each observable in the updated set of observables, an estimate of a sign of the expectation value of the quantum state with respect to the observable.

ALGORITHMIC FAULT-TOLERANCE FOR LOW OVERHEAD QUANTUM COMPUTING

Resumen de: AU2025360923A1

Error-corrected quantum computation using transversal gates and correlated decoding is provided. A first and second logical qubit is encoded into physical qubits according to a quantum error correcting code. Based on the quantum error correcting code, a bipartite decoding graph is constructed corresponding to the first and the second logical qubits, the bipartite decoding graph comprising a plurality of detector nodes and a plurality of error nodes, each error node corresponding to an error mechanism. A transversal gate is applied to the first and the second logical qubits. Syndrome measurement of the first and the second logical qubits is performed. For each of the plurality of detector nodes affected by the corresponding error mechanism of one of the plurality of error nodes, an edge is generated on the bipartite decoding graph therebetween. A physical error configuration is determined from the bipartite decoding graph.

PARAMETRIC QUBIT RESET USING LOSSY MULTIMODE CAVITY

Resumen de: AU2025267060A1

Systems and methods for resetting a qubit are provided. In one example, a reset circuit may include a resonator structure. The resonator structure may be configured to resonate at a first frequency and a second frequency. The resonator structure may include a superconducting material characterized by a superconducting energy gap. An energy corresponding to the first frequency may be below the superconducting energy gap. An energy corresponding to the second frequency may be above the superconducting energy gap. The reset circuit can further comprise a frequency converter configured to convert an excitation of the resonator structure from the first frequency to the second frequency.

CONTINUOUS RELOADING OF ATOMIC QUBITS INCLUDING TWO OPTICAL CONVEYOR BELTS

Resumen de: AU2025280050A1

Devices and methods for reloading atomic qubits into a quantum computer via two optical conveyor belts are provided.

STATE PREPARATION FOR QUANTUM COMPUTING

Resumen de: AU2025339478A1

Quantum computing devices, systems and methods for performing quantum state preparation of a purified target quantum state. A first quantum register is prepared in a first state that includes, for each of a plurality of collective modes, a summation over energy label states weighted based on a Gibbs probability distribution. A second quantum register is prepared in a second state that includes, for each respective collective mode, a summation over respective eigenstates. A third quantum register is prepared in a third state by applying a plurality of third unitary operators to the second and third quantum registers to transform the collective mode coordinates of the second state to physical coordinates, and adding this transformed state into the third quantum register. The state of the second quantum register is then un-computed to return the second quantum register to the null state and the first and third quantum registers are prepared in the purified target quantum state.

MAGIC STATE FACTORY CONSTRUCTIONS FOR PRODUCING CCZ AND T STATES

Resumen de: EP4822613A2

0001 Methods, systems, and apparatus for producing CCZ states and T states. In one aspect, a method for distilling a CCZ state includes preparing multiple target qubits, ancilla qubits and stabilizer qubits in a zero state, performing an X gate for each stabilizer qubit on multiple ancilla qubits or multiple ancilla qubits and one of the target qubits using the stabilizer qubit as a control, measuring the stabilizer qubits, performing, on each of the ancilla qubits, a Z1/4 gate and a Hadamard gate, measuring each of the ancilla qubits, performing, conditioned on each measured ancilla qubit state, a NOT operation on a selected stabilizer qubit, or a NOT operation on the selected stabilizer qubit and a Z gate on one or more respective target qubits, performing, on each target qubit and conditioned on a measured state of a respective stabilizer qubit, a Z gate on the target qubit, and performing an X gate on each of the target qubits.

META-COGNITIVE FRAMEWORK WITH QUANTUM-INSPIRED PATTERN RECOGNITION SYSTEM

Resumen de: EP4822592A1

0001 A meta-cognitive AI framework employing quantum-inspired algorithms is disclosed for adaptive pattern recognition on classical computing hardware. The system uses complex phase-space transformations, O(n<2>) Lanczos eigenvalue computation, and deterministic interference synthesis with 128-dimensional complex vectors. Emergent capabilities are identified through residual projection analysis and validated via adaptive threshold control. The invention improves recognition accuracy, processing efficiency, and adaptability across industrial domains such as robotics, healthcare, environment, energy , transport, defence, space and finance. It represents a novel integration of meta-cognitive feedback, quantum-inspired computation, and emergence detection not previously combined in prior art.

SYSTEMS AND METHODS FOR INTEGRATING VERTICAL EXTERNAL CAVITY SURFACE EMITTING LASERS (VECSELS) WITH A CONFINEMENT APPARATUS

Resumen de: WO2025122465A2

A confinement assembly includes a first substrate having a plurality of electrodes disposed on an electrode-housing surface thereof and a second substrate mounted with respect to the first substrate such that an object-facing surface of the second substrate faces the electrode- housing surface of the first substrate. The electrodes at least partially define a confinement apparatus configured to confine a plurality of quantum objects. A first mirror and gain material are disposed on the first substrate and a composite optic is coupled to the second substrate. The composite optic includes a second mirror. The first mirror and gain material and the second mirror define a vertical external cavity surface emitting laser (VECSEL) having a cavity defined between the first mirror and the second mirror. The composite optic also includes a fluorescence collection lens configured to direct light fluoresced by a quantum object confined within the cavity to a collection location.

QUANTUM DIGITAL-ANALOG CONVOLUTIONS FOR IMAGE CLASSIFICATION

Resumen de: WO2025120102A1

The invention pertains to a computer-implemented method for generating a dataset of quantum-generated images configured to be used to train a Convolutional Neural Network for image classification.

QUANTUM DEVICE

Resumen de: EP4822609A1

0001 A quantum device includes a quantum bit element that includes a first diamond crystal layer having a first center point and having a shape extending in four directions from the first center point so as to be orthogonal to each other, a second diamond crystal layer having a second center point and having a shape extending in four directions from the second center point so as to be orthogonal to each other, and a color center present in one of the first diamond crystal layer and the second diamond crystal layer, the first diamond crystal layer and the second diamond crystal layer being stacked so that at least parts of the first center point and the second center point overlap each other, a first optical waveguide connected to each of four first ends of the first diamond crystal layer, and a second optical waveguide connected to each of four second ends of the second diamond crystal layer.

QUANTUM COMPUTER

Resumen de: WO2025120077A1

An optical system (100) for controlling the state of an ion in a Paul trap (201), the optical system (100) comprising: - a substrate (110) adapted to be coupled to the Paul trap (201); - at least one waveguide (120) formed on and/or in the substrate (110), wherein the waveguide (120) comprises a main body (121), the main body (121) having a waveguide facet (126) at an end of the main body (121) of the waveguide (120), the waveguide facet (126) having a deflection angle (α) configured to guide light from the waveguide (120) through a main surface (205) of the main body (121) of the wave guide (120) to an ion in the Paul trap (201).

QUANTUM DEVICE AND METHOD FOR CONTROLLING QUANTUM DEVICE

Resumen de: EP4822608A1

A quantum device includes a plurality of quantum bit elements each including a diamond crystal layer and a color center, the diamond crystal layer having a central portion and extending portions connected to the central portion and extending in 2n directions (n is an integer of 2 or more) from the central portion, the color center being formed in the central portion, an input optical waveguide connected to each of n ends of the extending portions and configured to transmit light introduced into the color center, an output optical waveguide connected to each of n ends of the extending portions and configured to transmit a photon emitted from the color center, and a branching element connected to the output optical waveguide of a first quantum bit element of the plurality of quantum bit elements and the output optical waveguide of a second quantum bit element of the plurality of quantum bit elements.

MODULAR AND SCALABLE QUANUTM COMPUTER WITH TRAPEZOIDAL UNIT CELLS

Resumen de: CN122374581A

Systems and techniques are provided that facilitate scalable cryostats and cryogenic systems. In one embodiment, a cryogenic system (300) may include a plurality of unit cells (304) coupled together, where each unit cell includes: a trapezoidal frame (704) where frames from adjacent unit cells are connected in a vacuum-tight manner to form a continuous global vacuum enclosure, where each unit cell is connected to the trapezoidal frame; and wherein the unit cell can be horizontally removed from the plurality of coupled unit cells or inserted into the plurality of coupled unit cells. Further, each unit cell may include at least one temperature enclosure (508, 510, 512), where the temperature enclosures from adjacent unit cells are connected to form a continuous global temperature enclosure. Moreover, each unit cell may include at least one cryogenic payload (514) located within at least one temperature housing that is cooled by at least one retrofit version of the standard dilution refrigerator.

A METHOD FOR DETERMINING SETS OF MOVES FOR REARRANGING PARTICLES OF AN INITIAL ARRAY OF QUBITS ACCORDING TO A TARGET ARRAY OF QUBITS

Resumen de: EP4567686A1

The present invention relates to a method for determining sets of moves for rearranging particles (P) of an initial array of qubits according to a target array of qubits, the method comprising:- determining a first set of compression moves for some particles (P) of the initial array of qubits as a function of initial data relative to the initial array of qubits and of target data relative to the target array of qubits so as to obtain an intermediate array of qubits, and- determining a second set of moves for some particles (P) of the intermediate array of qubits as a function of trapping sites data relative to the positions of trapping sites, of the target data and of the intermediate array of qubits.

FLUX LINE FOR MANIPULATING QUBIT

Resumen de: WO2025191211A1

There is provided mitigating Purcell loss at qubit frequency. A flux line for manipulating at least one qubit, comprises: a first segment (1302) for connecting to an input terminal for receiving a control signal; and a second segment (1304, 1604) for coupling the control signal to a Superconducting Quantum Interference Device (SQUID) operatively connected to the at least one qubit, the second segment is arranged consecutive with respect to the first segment (1302), and the first segment and the second segment are configured to have an impedance mismatch at a qubit frequency of the at least one qubit.

METHOD FOR CHARACTERIZING THE IMAGING FIDELITY OF AN IMAGING UNIT

Resumen de: EP4822563A1

0001 The invention relates to a method for characterizing the imaging fidelity of an imaging unit (22) of a quantum device (12), the imaging unit (22) being suitable to acquire images of a quantum register generated by the quantum device (12), and to detect, on the acquired images, particles trapped in trapping sites of the quantum register as a function of a given detection threshold, the detection threshold being such that, for each trapping site, a particle is considered present in said trapping site when the number of electrons, resulting from the conversion of the photons received by the imaging unit (22) at the location of said trapping site, is above the detection threshold, and being considered absent otherwise, the method being implemented by a computing system (10) comprising the quantum device (12) and a classical computer (14).

INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING DEVICE

Resumen de: EP4822610A1

0001 An information processing program causes a computer to execute a process including, in a machine learning model configured to have layers, an input of quantum data being accepted at a first layer, a preceding layer of two consecutive layers included in the layers inputting an output generated by the generation function based on an output of the quantum circuit to the quantum circuit included in a subsequent layer, inputting first quantum data to the first layer and causing first output data to be generated, and inputting, in each second layer arranged in a subsequent stage to the first layer, second quantum data to a quantum circuit that has generated a quantum feature map for an output from a layer arranged in a preceding stage of each second layer, and causing second output data to be generated.

SYSTEM AND METHOD FOR DETERMINING OR MEASURING A SPECTRUM OF ONE OR MORE MOLECULE USING A QUANTUM COMPUTER

Resumen de: EP4822611A1

The method can include computing a leading-order error operator based on fragments of a Hamiltonian representing the one more molecules, where the fragments can be diagonalized, and a product formula approximating the time evolution; computing a set of eigenstates representing a classical solution of the Hamiltonian; computing product formula expectation values of the leading-order error operator for at least some eigenstates of the set; computing a maximum time step associated to a target error using the product formula expectation values; and performing a quantum phase estimation quantum computing process to determine the spectrum, including performing one or more Fourier transforms of the product of the distribution with the one or more expectation values in a discretized manner, over one or more time steps, the one or more time steps being equal to or lesser than the maximum time step.

COMPUTER PROGRAM, QUANTUM COMPUTATION SUPPORT METHOD, AND INFORMATION PROCESSING APPARATUS

Resumen de: EP4822612A1

0001 A processing unit identifies a first joint element from a first patch element group included in a first patch that appears in the course of lattice surgery, performs an optimization process for optimizing an application order of controlled NOT (CNOT) gates for a syndrome measurement circuit in the first joint element with respect to a direction of a logical operator defined for the first joint element, and stores, in a storage unit, optimal circuit information associating the first joint element with the application order of CNOT gates. The processing unit identifies, upon detecting a second path during execution of lattice surgery, a second joint element corresponding to the first joint element from a second patch element group included in the second patch, and assigns the application order of CNOT gates associated with the first joint element to the second joint element, based on the optimal circuit information.

MANAGEMENT OF QUEUES FOR VARIOUS QUANTUM PROCESSING UNITS PROVIDED BY A QUANTUM COMPUTING SERVICE

Resumen de: US20250190840A1

Techniques for tracking and maintaining queues used for executing pending quantum objects using respective quantum processing units (QPUs) are disclosed. An amount of time to execute a given quantum object depends on many factors, and a non-deterministic nature of quantum computing resources is such that, while knowing an expected wait time in a queue for access to a given QPU is useful, it is difficult to reliably determine. A quantum computing service that manages submission and execution of quantum objects to respective QPUs may apply QPU-specific machine learning models in order to predict expected wait times and provide that information to customers. By generating labeled datasets using ground truth wait times pertaining to already-executed quantum objects, respective machine learning models may be trained using a supervised learning technique, which may be a self-contained and re-occurring process.

用于隔离和定向放大的超导参量干涉仪

Resumen de: WO2025195741A2

A device comprises a superconducting parametric interferometric circuit, which comprises a signal input port and a signal output port, and a first parametric mixing circuit and a second parametric mixing circuit coupled in parallel between the signal input port and the signal output port. The signal input port configured to receive an input signal having a first frequency. The first parametric mixing circuit is configured to convert the input signal to a first output signal having a second frequency, and the second parametric mixing circuit is configured to convert the input signal to a second output signal having the second frequency. The superconducting parametric interferometric circuit is configured to constructively combine the first and second output signals at the signal output port to generate an output signal having the second frequency, and provide isolation of the signal input port from a signal which is present at the signal output port.

量子测控软件系统的初始化方法、运行方法及量子计算机

Resumen de: CN122905092A

本申请公开了一种量子测控软件系统的初始化方法、运行方法及量子计算机，属于量子计算技术领域；初始化方法应用于提供前端服务页面的量子测控软件系统，方法包括：依据与目标量子芯片连接的量子测控一体机的地址登录前端服务页面，并在前端服务页面创建映射量子测控一体机和目标量子芯片的操控平台；依据目标量子芯片的物理结构在前端服务页面建立操控平台的量子芯片线路图，并配置量子芯片线路图的线路信息；在前端服务页面对操控平台的操控参数进行初始化设置。本申请通过在前端服务页面对操控平台中的量子芯片和量子测控一体机的相关参数进行配置，以实现操控平台的初始化初始化，提高效率。

一种高频地波雷达海流观测填补拓延方法及系统

Resumen de: CN122903757A

本发明公开了一种高频地波雷达海流观测填补拓延方法及系统，该方法包括：基于D‑vine Copula函数建模流场分量与辅助环境变量的非线性依赖关系，结合模糊推理完成流场缺失观测区域的模式分类，输出Copula条件先验场与缺失模式分类结果；再以先验场为重构初始约束、分类结果为专家分配依据，通过嵌入堆叠去噪自编码器的混合专家U‑Net架构，对缺失区域做多尺度特征提取与重构，得到初步重构流场；最后经自注意力贝叶斯网络完成像素级不确定性量化，结合流场因果图执行物理一致性校验与修正，输出完整海流填补结果。本发明能够提高缺失流场数据的保真度与可预测性。本发明作为一种高频地波雷达海流观测填补拓延方法及系统，可广泛应用于海表流场数据处理技术领域。

基于素数谱拓扑约束的量子比特相干调控芯片

Resumen de: CN122905091A

本发明公开了一种基于素数谱拓扑约束的量子比特相干调控芯片。所述芯片包括量子比特阵列、素数谱拓扑约束生成器、相干性监测单元和反馈控制单元。素数谱拓扑约束生成器在量子比特上施加满足素数谱流形拓扑约束的相干调控脉冲序列，相干性监测单元实时监测相干时间，反馈控制单元动态调整脉冲参数。本发明可应用于量子比特的相干时间延长、退相干抑制和量子门操作的保真度提升。

一种加速变分量子线路训练的方法、装置及量子计算机

Nº publicación: CN122905086A 13/10/2026

Solicitante:

本源量子计算科技（合肥）股份有限公司

Resumen de: CN122905086A

本发明涉及量子神经网络技术领域，具体涉及一种加速变分量子线路训练的方法、装置及量子计算机，本申请通过构建量子线路计算图结合变分量子线路进行正向传播和损失函数计算得到的若干个损失值，在经典计算机上实现对变分量子线路反向梯度的计算，无需进行多次变分量子线路的反向梯度计算，避免变分量子线路反向梯度计算耗时较长的问题，同时将若干个量子态的经典数据划分到经典计算机其他计算节点的任务线程上进行分布式计算，进一步加速了整个变分量子线路训练过程。