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229
results.
Updated on
15/07/2026 [08:25:00]
Results 25 to 50 of 229
Absstract of: CN122366695A
本发明公开了一种拓扑管理器，涉及光量子计算技术领域。该拓扑管理器包括拓扑矩阵加载模块、拓扑自检模块与拓扑更新模块，所有模块均为纯硬件集成电路，全流程无软件处理器参与核心控制。拓扑矩阵加载模块加载拓扑矩阵数据，拓扑自检模块对拓扑矩阵执行校验，拓扑更新模块接收拓扑更新指令并原子更新拓扑矩阵数据。本发明通过纯硬件实现光学干涉网络拓扑的管理，能够有效提高拓扑加载、校验和更新的速度与可靠性，支持系统运行过程中的动态拓扑更新。
Absstract of: CN122366692A
本申请实施例公开了一种非稀疏量子态数据层析方法及相关装置，该方法包括：根据获取的光滑长度和核函数通用表达式确定核函数具体形式，以及对稀疏量子态进行n轮采样，得到n个采样结果，每个所述采样结果包括多个基矢标签以及每个所述基矢标签对应的振幅，所述n为大于0的正整数；根据每个所述采样结果中的基矢标签确定所述核函数中未知数的数值以实现对所述基矢标签对应的振幅进行核估计，得到n个核估计值；将n个所述核估计值的平均值作为所述非稀疏量子态的层析结果。采用本申请实施例，有利于降低非稀疏量子态数据的层析复杂度，从而提高非稀疏量子态数据的提取速度，降低非稀疏量子态数据层析过程中存储资源需求。
Absstract of: CN122372198A
本申请提供一种量子算法密钥对生成装置、方法、系统、介质和设备，涉及密码学领域，所述装置包括：内部存储模块，缓存包含P1、P2、P3和SO的加密数据；矩阵计算单元，执行矩阵运算并判断完成状态，基于P1、P2和SO生成P3和SKS；直接存储器访问模块，负责数据读写及公私钥对写回；哈希模块，基于种子扩展生成P1、P2和SO数据。本申请充分利用硬件并行能力和专用存储资源，在保持安全强度的前提下实现密钥对生成速度的数量级提升。
Absstract of: GB2636580A
A vacuum feedthrough 10 providing an electrical connection from ambient pressure into a vacuum chamber 18 comprises: a first wall (12a, Fig. 1) at least partially connected to or part of the vacuum chamber; a second wall (12c) connected to the first wall by one or more sidewalls (12b), thereby defining an internal volume 12; a first electrical feedthrough 14 arranged in the first wall providing one or more electrical connections (24) through the first wall in a vacuum tight manner; a second electrical feedthrough 16 arranged in the second wall providing one or more electrical connections 26 through the second wall in a vacuum tight manner, the one or more electrical connections of the first electrical feedthrough being connected with respective electrical connections of the second electrical feedthrough; wherein the internal volume is a vacuum. The internal volume may be connected to a vacuum pump 34 or an inner surface of one or more of said walls may be covered with a NEG material.
Absstract of: CN122366689A
本发明公开了一种基于图谱神经算子的量子近似优化参数空间热启动方法，包括以下步骤，对待求解的组合优化问题进行数学建模，将其映射为图论模型，构建目标能量函数；根据图论模型构建量子系统的哈密顿量；生成频域特征张量；将频域特征张量输入至预先训练的傅里叶神经算子模型中，通过在频域中截断高频模式并保留低频模式，零样本预测出绝热演化原始参数；对原始参数进行物理约束松弛处理，注入高斯动能扰动，生成经典优化器的热启动初始参数；将热启动初始参数加载至标准QAOA量子线路中进行闭环迭代，找到组合优化问题的近似最优解。本发明具有卓越的跨规模泛化能力，突破荒原现象与局部极小值，大幅降低量子资源消耗。
Absstract of: US20260195212A1
Systems and methods for dynamic error resolution in hybrid quantum-classical computing environments are disclosed. A system can obtain telemetry data corresponding to a processing job. The system can determine that an error resolution technique is to be applied to the quantum portion of the processing job. The system can select, for a quantum portion of the processing job, the error resolution technique from a plurality of error correction techniques and a plurality of error mitigation techniques. The system can update a hierarchical data structure representing the processing job as at least a set of nodes. The hierarchical data structure can be updated to include the error resolution technique in association with a respective node of the hierarchical data structure representing the quantum portion of the processing job.
Absstract of: WO2026146666A1
The present disclosure relates to an apparatus and method for performing an entanglement percolation-based entanglement routing strategy using local information in a quantum communication system. Specifically, the present disclosure relates to an apparatus and method in which each intermediate node involved in distributing remote entanglement between any two distant transmitting and receiving nodes on the basis of entanglement percolation in a quantum communication system determines a local operation and classical communication (LOCC) strategy thereof on the basis of local information. The present disclosure relates to an apparatus and method for determining an operation mode of a specific node as one of a repeater mode, a vertex mode, or a hybrid mode using only information between the specific node and neighboring nodes, and performing entanglement routing on the basis of an LOCC strategy corresponding to each mode.
Absstract of: EP4492296A1
0001 A method for calibrating a quantum system for stabilizing a cat qubit, said quantum system (1) including a non-linear superconducting quantum circuit (3) having a first mode (a) with a first resonant frequency (ωa ) for hosting said cat qubit and a second mode (b) with a second resonant frequency (ωb) and comprising a non-linear element (7) arranged to induce a 2-to-1 photon exchange between said first mode (a) and said second mode (b) either via a parametric pump and 4-wave mixing coupling said first mode (a) and said second mode (b) or via a DC bias and 3-wave mixing coupling said first mode (a) and said second mode (b), and a command circuit (5) for delivering microwave radiation or current bias to the non-linear superconducting quantum circuit (3) in order to provide said parametric pump or said DC bias and a first mode drive, comprising the following operations: a) obtaining a set of command circuit operating parameters, each set consisting of either a couple associating a parametric pump frequency (ωp) and a first mode drive frequency (ωz) if said non-linear element (7) performs a 4-wave mixing or a couple associating a DC bias value (IDC) and a first mode drive frequency (ωz) if said non-linear element (7) performs a 3-wave mixing, b) applying said set of command circuit operating parameters to said command circuit (5) during a period of more than 10 ns, c) performing at least one measurement in the group comprising a first mode photon number measurement
Absstract of: WO2025003124A1
A device comprises filter circuitry and non-linear mixing devices. The filter circuitry comprises a first port, a second port, a first bandpass filter, and a second bandpass filter. The non-linear mixing devices are responsive to control signals to couple poles of the first bandpass filter to respective poles of the second bandpass filter to cause non-reciprocal transmission of signals from the first port to the second port.
Absstract of: US2024420005A1
0000 A controller for a set of superconducting qubits includes a parametrically driven tunable coupler coupled to each superconducting qubit in the set of superconducting qubits comprising three or more superconducting qubits, a magnetic flux pump coupled to the parametrically driven tunable coupler, a first control line coupled to the magnetic flux pump, and a second control line coupled to the magnetic flux pump. The parametrically driven tunable coupler creates a parametric single superconducting qubit drive for a single superconducting qubit within the set of superconducting qubits or a parametric resonant interaction between a pair of superconducting qubits within the set of superconducting qubits when one or more first frequency signals on the first control line and one or more second frequency signals on the second control line satisfy a specified condition.
Absstract of: US20260195624A1
0000 The present disclosure provides systems and methods to measure quantum gate fidelity through swap spectroscopy. In particular, aspects of the present disclosure are directed to the derivation and use of a physical model that models non-Markovian quantum dynamics of interactions between one or more qubits of a quantum gate and one or more two-level-system (TLS) defects during operation of the quantum gate.
Absstract of: US20260194784A1
0000 A system includes a quantum source and an optical device coupled to the quantum source. The quantum source is configured to emit an entangled photon. The optical device is configured to route the entangled photon to one or more outputs. In some aspects, the optical device can include a photonic integrated circuit (PIC). Advantageously the system can provide a routing scheme to route (e.g., passively, actively, dynamically, or a combination thereof) entangled photons from one or more quantum sources (e.g., trapped ion, single-photon source, quantum emitter, etc.) between different nodes, a quantum frequency conversion scheme to match near-infrared photons (750 nm to 1260 nm) and/or telecommunication photons (1260 nm to 1675 nm) entangled with photons from one or more quantum sources to an operating wavelength of the optical device (e.g., PIC), programmable routing and entanglement distribution, and scalable long-distance quantum networks.
Absstract of: US20260195629A1
Systems and methods relate to mechanically mediated coupling of qubits to a mechanical resonator. Individual qubits can be coupled to a mechanical resonator, which can in turn couple to a second qubit that is separated from the first in distance, time, or both. Such mechanically mediated coupling can produce entangled qubit states over long distances and timescales. Arrays of qubits and/or mechanical resonators can be used to scale mechanically mediated coupling to larger numbers of qubits.
Absstract of: US20260195403A1
A method solves matrix problems and comprises an encoding step, wherein a matrix is transformed into a unitary matrix, by encoding the matrix with a unitary dilation theorem used as an encoding function; then an optical design step, wherein the unitary matrix is translated into a linear optical circuit, then an optical device is formed by the linear optical circuit, single-photon sources at input and single-photon detectors at output; then an analysis step, wherein the optical device is used for solving a problem related to the matrix, by analyzing the output state of the single-photon detectors. A system implements the method.
Absstract of: US20260195628A1
A non-linear superconducting quantum circuit having a first mode and a second mode is disclosed, wherein the first mode and the second mode have respective resonant frequencies. The circuit is configured such that the resonant frequency of the second mode is substantially 2N times the resonant frequency of the first mode when a predetermined current of a constant intensity is applied to the circuit. The circuit intrinsically performs a resonant 2N-to-1 photon exchange between respectively the first mode and the second mode, with N being a positive integer, thus improving the non-linear superconducting quantum circuit. When this circuit receives a predetermined current and when the second mode is driven appropriately, the circuit can stabilize a cat-qubit. In order to perform quantum measurements on this circuit, the drive of the second mode is turned off, thus switching to a no-drive manifold such that the quantum measurements can be performed.
Absstract of: US20260195450A1
This disclosure relates to a method for detecting an attack on a machine learning system. A classical neural network comprises a first output indicative of a first classification by the classical neural network and a quantum neural network comprises a second output indicative of a second classification of the input data by the quantum neural network. The method comprises comparing the first output to the second output; and responsive to the first output being different to the second output, generating an indication that an attack is detected.
Absstract of: WO2021007560A1
A device includes a grouping of N qubits, where N is equal to two or more, and a coherent light source configured to, given selected values for a set of parameters of at least a first and a second laser pulse, the parameters selected from a relative phase shift, a laser frequency, a laser intensity, and a pulse duration: apply at least the first and second laser pulses to all qubits within the grouping of N qubits, thereby coupling a non-interacting quantum state |1> to an interacting excited state |r), such that each qubit that begins in quantum state |1) returns to the state |1) upon completion of the at least first and second laser pulses, and such that qubits in the grouping are mutually blockaded.
Absstract of: US20260195630A1
A computational method via a hybrid processor comprising an analog processor and a digital processor includes determining a first classical spin configuration via the digital processor, determining preparatory biases toward the first classical spin configuration, programming an Ising problem and the preparatory biases in the analog processor via the digital processor, evolving the analog processor in a first direction, latching the state of the analog processor for a first dwell time, programming the analog processor to remove the preparatory biases via the digital processor, determining a tunneling energy via the digital processor, determining a second dwell time via the digital processor, evolving the analog processor in a second direction until the analog processor reaches the tunneling energy, and evolving the analog processor in the first direction until the analog processor reaches a second classical spin configuration.
Absstract of: WO2026145962A1
A method of measuring self-Kerr in a physical quantum system configured to host a bosonic code qubit, comprises the following operations: 1) providing a physical quantum system configured to host a bosonic code qubit, said physical quantum system comprising (i) a quantum circuit comprising oscillators hosting a buffer or readout mode and a memory mode, and a non-linear element coupling the buffer or readout mode to the memory mode, and (ii) a control circuit configured to apply one or more control signals to the quantum circuit to stabilize the bosonic code qubit in the memory mode and further configured to receive measurement signals from at least the buffer or readout mode, 2) define a coherent state (α) for the memory mode, and, for each of a plurality of coherent state amplitudes and each of a plurality of durations (t), a. prepare, using the control circuit, said coherent state (α) in the memory having one of said plurality of coherent state amplitudes, b. wait for a period of time having one of said duration (t), c. apply, using the control circuit, one or more control signals to said quantum circuit such that the quantum circuit is in a resonant regime | i * ω a - ω b | = j * |ω cs | if said one or more control signals comprise an AC component having an angular frequency |ω cs | or | i * ω a - ω b | = 0 if said one or more control signals comprise only DC components, resulting in an interaction, mediated via said non-linear element, in said physical quantum s
Absstract of: US20260195627A1
0000 The present invention relates to a system and method for quantum processing framework development comprising an integrated quantum processing control device configured to interface with at least one quantum processing unit. The system includes a program interpretation processor for converting high-level quantum technique definitions into an abstract syntax representation, an intermediate representation processor for generating a hardware-independent graph data structure, a topology mapping processor for mapping logical qubits onto physical qubits based on connectivity and calibration data, and a scheduling processor for optimizing execution order in view of coherence and fidelity parameters. A pulse synthesis processor generates time-domain waveform instructions corresponding to mapped quantum gate operations, and a real-time control processor transmits synchronized control signals to digital-to-analog conversion circuitry while acquiring measurement data through analog-to-digital conversion circuitry. A hybrid synchronization processor coordinates classical post-processing and conditional quantum operations within deterministic latency constraints.
Absstract of: WO2026147506A1
Techniques are described for controlling qubits using baseband pulse sequences. Many, or even all, qubits in a system can be controlled by baseband pulse sequences that are synchronized to a clock signal shared by the qubits. The baseband pulse control techniques allow many qubits to be driven with the same parameterized baseband pulse sequence applied based on a common clock signal, with parameters of the baseband pulse sequence selected based on the desired operation. This approach greatly simplifies the electronics needed to drive a collection of qubits, as there is no need for picosecond timing, nor the complexities that arise from varied gate durations.
Absstract of: US20260195625A1
A system for implementing a hybrid cryogenic electronic architecture is disclosed. The system comprises: a cryostat system operable to provide a first cryogenic temperature and a second cryogenic temperature; a quantum computing module comprising a plurality of quantum bit circuits capable of superconducting at the first cryogenic temperature; a CMOS circuitry module enclosed by the cryostat at the second cryogenic temperature and structured to support complementary metal-oxide-semiconductor (CMOS) circuits configured to interface with SFQ logic circuitry to allow control signals and quantum bit signals to be transferred therebetween; and an ambient temperature or room temperature (RT) control module operable to provide input signals to the CMOS circuitry module and to receive therefrom readout signals associated with quantum states of the plurality of quantum bit circuits.
Absstract of: WO2026147549A2
Quantum computing devices, systems and methods for using quantum rejection sampling to prepare a quantum register in a target quantum state or to block encode a target matrix to operate on a quantum register. A preparation operator is applied to a first quantum register and a second quantum register to prepare the first quantum register in a reference state and to prepare the second quantum register in a uniform register state. The reference state approximates the target quantum state and is a summation over a set of computational basis states weighted by a reference function. Rejection sampling is performed on the first quantum register to prepare the first quantum register in the target quantum state.
Absstract of: AU2025211815A1
Methods and apparatus for measuring quantum systems involve: applying first optical pulses to the quantum system and monitoring for a first resulting photon after each first optical pulse; in response to detecting one or more first resulting photons, performing a π operation on the quantum system; and, after performing the π operation, applying second optical pulses to the quantum system and monitoring for a second resulting photon after each second optical pulse. The first and second optical pulses comprise a wavelength corresponding to a transition from a first basis state of the quantum system to an excited state. A measurement result is determined based on results of the monitoring.
Nº publicación: US20260195631A1 09/07/2026
Applicant:
GOOGLE LLC [US]
Google LLC
Absstract of: US20260195631A1
0000 Systems and methods for tracking errors in a quantum computing system are provided. In one example, a method can include matching data associated with one or more detection events associated with a quantum computing system using a successive pattern structure comprising a plurality of processing layers. Each processing layer in the plurality of processing layers can be associated with a pattern including a plurality of sections. Each section can be associated with a processing unit operable to match one or more detection events near a center of the section. The method can include tracking one or more errors of a quantum computing system based at least in part on a matching of one or more detection events.
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