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一种基于地址阵列偏移量编码的宏观量子态隐形传态保真度增强方法及其系统

Resumen de: CN123034898A

本发明公开了一种基于地址阵列偏移量编码的宏观量子态隐形传态保真度增强方法及其系统。所述方法在发送端将宏观量子态编码为等腰梯形地址阵列中的地址对，相位由地址对相对于中心对称轴的偏移量表示；在传输过程中持续读取地址对位置，当偏移量超出容限时执行相位锁定，将地址对拉回初始位置；在接收端读取地址对位置，根据偏移量重建相位、根据层位置重建幅值；通过搜索最近合法层补偿残余相位漂移。本发明实现了宏观量子态隐形传态过程中相位的主动保全和保真度增强，适用于量子中继网络、分布式量子计算、长距离量子通信等场景。

量子密钥分发网络修复动作执行方法、装置及电子设备

Resumen de: CN123034946A

本申请涉及量子保密通信网络运维控制技术领域，公开了一种量子密钥分发网络修复动作执行方法、装置及电子设备。本申请中，该方法包括：获取候选修复动作，候选修复动作包括用于下发至量子密钥分发网络的统一控制意图；获取候选修复动作执行前的量子物理量，量子物理量至少包括所涉链路的量子比特误码率、密钥池水位，以及多强度态的计数量；基于量子比特误码率和密钥池水位，对统一控制意图执行密钥储备校验，以及，基于多强度态的计数量，对统一控制意图执行诱骗态安全域校验；在密钥储备校验和诱骗态安全域校验均通过的情况下，以事务方式下发统一控制意图。通过上述方法，实现量子密钥分发网络的自动运维。

一种基于拓扑保护的芯片-光纤-芯片量子隐形传态网络节点及其控制方法

Resumen de: CN123020043A

本发明公开了一种基于拓扑保护的芯片‑光纤‑芯片量子隐形传态网络节点及其控制方法。所述网络节点包括拓扑光子芯片（发送端，包含量子态产生单元和编码单元）、拓扑结构光纤、拓扑光子芯片（接收端，包含解码单元和量子态验证单元）、芯片‑光纤耦合接口、投影几何调控模块和同步控制模块。投影几何调控模块通过外部场调控各拓扑光子晶体单元的投影角θ（θ=arctan(β_s/β_r)，β_r²+β_s²=1），实现量子态的编码、拓扑保护传输和读取；全链路拓扑稳定性判据实时保障传输可靠性。本发明实现了芯片‑光纤‑芯片全链路的拓扑保护量子隐形传态，传输距离≥10km，全链路保真度≥0.95，适用于量子通信网络和量子互联网等场景。

一种空域可重构偏振感知交互系统及其识别方法

Resumen de: CN123019863A

本发明公开了一种空域可重构偏振感知交互系统及其识别方法，属于圆偏振光子感知与机器视觉协同应用技术领域。系统包括空间可编程圆偏振光场编码芯片、无人机平台、通信与协同控制单元、地面光子信标识别终端及光子编码解析单元。芯片包含左旋、右旋圆偏振发光像元区域及非手性参考区域。地面终端通过双通道采集左旋与右旋偏振图像，解析单元以非手性参考区域为基准进行双通道亮度融合计算，构建结构化手性光场特征图谱，实现芯片识别与空间定位。本发明构建了“空中旋向信号发射—地面偏振接收—智能解析反馈”的全闭环感知链路，利用圆偏振信号旋向正交特性进行背景抑制与特征增强，在复杂光学环境下提高了目标识别精度。

一种基于可调谐拓扑陈数的动态量子态路由装置及其控制方法

Resumen de: CN123019892A

本发明公开了一种基于可调谐拓扑陈数的动态量子态路由装置及其控制方法。所述装置包括拓扑光子晶体路由核心（包含多个波导分支连接至各输出端口）、陈数调控阵列（独立调控各分支的局部拓扑陈数）、路由控制模块、输入/输出端口、路由状态监测模块和拓扑稳定性反馈模块。局部拓扑陈数通过调控投影角实现连续调节（，，）；陈数‑端口映射表建立与第个输出端口的对应关系；路由切换中拓扑稳定性反馈模块根据判据确保拓扑保护连续性；路由状态监测模块通过局部Berry曲率测量验证路由状态。本发明实现了量子态在个输出端口间的动态可重构拓扑保护路由，切换时间，保真度，适用于量子通信网络和量子互联网等场景。

一种基于拓扑光子晶体波导阵列的片上集成量子态传输装置及其制备方法

Resumen de: CN123010178A

本发明公开了一种基于拓扑光子晶体波导阵列的片上集成量子态传输装置及其制备方法。所述装置包括SOI衬底、拓扑光子晶体波导阵列（包含发送端波导和接收端波导，具有相同非零拓扑陈数C_A=C_B≠0）、投影几何调控模块、量子态编码/解码单元、光纤‑芯片耦合接口和拓扑光子动态路由单元。投影几何调控模块通过电光或热光效应调控波导的投影角θ（θ=arctan(β_s/β_r)，β_r²+β_s²=1）至临界值θ_A=θ_B=π/2，实现宏观量子态的片上拓扑保护传输。光纤‑芯片耦合接口与SG00111和SG00115协同，拓扑光子动态路由单元与SG00118协同。本发明在标准SOI平台上实现了宏观量子态传输功能，具有拓扑保护、可调控、室温工作的突出优点，适用于量子芯片互联和片上量子通信等场景。

一种拓扑保护的量子隐形传态全链路工程方法及其系统

Resumen de: CN123019890A

本发明公开了一种拓扑保护的量子隐形传态全链路工程方法及其系统。所述方法包括：以复投影权重对数为物理正则化约束项筛选拓扑材料；根据拓扑相图公式确定器件最优结构参数并制造拓扑保护器件；根据稳定性判据实时监测并维持系统稳定性；在拓扑保护条件下执行量子隐形传态；以拓扑保护带宽为统一标定基准进行闭环反馈控制。本发明首次将拓扑材料筛选、拓扑保护器件制造、拓扑稳定性控制和量子隐形传态协议执行整合为统一的技术链条，实现了从理论设计到工程实施的全链路闭环控制。

A PILOT-FREE SCHEME FOR QUANTUM KEY DISTRIBUTION

Resumen de: WO2026224371A1

The disclosure regards a system for a quantum key distribution (QKD) protocol, the system comprising an optical transmitter comprising an optical source configured to generate a primary optical signal, and a modulator configured to modulate the amplitude and/or the phase of the primary optical signal. The system further comprises an optical receiver comprising a local oscillator configured to generate a secondary optical signal, a state detection unit configured to detect one or more quadrature components of the primary optical signal, and a digital signal processing (DSP) module configured to process the one or more quadrature components, wherein the optical receiver is configured to enable interference between the primary and secondary optical signals, through the mixing conducted by the photodetector thereby generating a beat signal, and wherein the DSP module is configured to estimate impairments of the system, such as phase noise, by utilizing the beat signal. The disclosure further relates to a method for estimating impairments of the system.

SYSTEMS AND METHODS FOR DISTRIBUTING ENTANGLEMENT

Resumen de: US20260342452A1

Quantum entanglement may be distributed at a high rate over an optical link by sequential emission of spin-entangled optical photon states from different matter based quantum systems into the optical link and execution of a heralded entanglement protocol using the emitted photon states. The quantum systems can be provided by luminescent centers such as T centres, for example. Quantum states of the quantum systems may be transferred to other quantum systems after emission of the photon states. Entanglement swapping may be performed to extend the entanglement to be between quantum systems. The technology has example application in cases where optical fibre links are shared between many nodes and/or where it is desired to extend entanglement to an orbiting satellite, and is particularly useful when optical links are not simultaneously available.

Methods and Procedures for a Quantum Communication Protocol for Multimodal Data Streaming and High Throughput Quantum Internet

Resumen de: US20260342554A1

A system and method are provided for providing secure communications using a quantum communications system. A clock (e.g., an atomic clock) at a transmitter is synchronized with a clock at a receiver to coordinate seeds from the clocks to respective pattern generators at the receiver and transmitter. The pattern generators determine quantum state bases for the modulation (transmitter) and demodulation (receiver) of information onto quantum states of a quantum beam that is sent from the transmitter to the receiver. Thus, the modulation bases are known to the transmitter and receiver, but not to an eavesdropper. After demodulating the quantum beam, the receiver detects the quantum states of the demodulated beam to retrieve the information. The information can be a cryptographic key sent securely from the transmitter to the receiver. The quantum states can be qumodes with the information encoded in their quadratures, which are detected using homodyne/heterodyne detection.

FAULT-TOLERANT ATOMIC QUANTUM COMPUTATION

Resumen de: AU2025373538A1

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.

Distributed quantum computing

Resumen de: GB2705788A

Designing a quantum computing system by receiving parameters for an operation mode, identifying a suitable quantum error-correcting-code (QECC), deriving a topology for the QECC 1102, dividing the topology into tiles with connections to other tiles 1104, identifying properties of quantum processing units to implement tiles comprising a plurality of qubits 1106 and identifying required network pathways to implement connections between tiles by entanglement of signals generated by qubits of each tile 1108. QECC may be a low-density-parity-check, hyperbolic or semi-hyperbolic or Floquet code. May comprise distributed quantum system. Qubits may be trapped ion, cold atom, neutral atom, photon, spin or superconducting qubits. Signals may be photons generated by qubits. Signals may have wavelength in telecommunications range. Quantum processing units may comprise computational qubits and qubit-photon interfaces that may comprise an optical cavity. May comprise entanglement generators. Entanglement may be measured by a Bell state measurement. Network pathways may comprise switches to define a path between qubits and an entanglement generator. Tile may comprise nodes associated with qubits. Network pathways may be fixed or variable. Variable pathways may comprise intermediate layer of optical pathways coupled to outputs of processing units and switching layer coupled to optical pathways and entanglement generators. Figure 11

Ground-based quantum communication system using entangled particle arrays and precision timing

Resumen de: GB2705790A

This application relates to communicating data between two stations, each equipped with a particle array. The particle arrays are entangled. Data decoding involves performing measurements at predefined time intervals. Measurements at 1ns indicate a binary 0 value whilst measurements at 2ns indicate a binary 1 value. The measurements are performed on particles. The stations are synchronised with atomic clocks which must have a drift of less than or equal to 10 pico seconds. Also disclosed is quantum communication protocol which includes integrity checking via checksums derived from correlated measurements. The invention may be applied to long distance secure communications or fault detection on a power grid.

卫星间密钥协商方法、卫星及相关设备

Resumen de: CN122993929A

本公开提供了一种卫星间密钥协商方法、卫星及相关设备，涉及通信技术领域。方法包括：响应于进入第一卫星与第二卫星之间的可见性窗口，向第二卫星发送信标光信号，其中，可见性窗口为第一卫星和第二卫星之间具备建立光链路的视距条件的时间段；接收第二卫星反馈的确认光信号；从确认光信号中提取密钥密文；对密钥密文进行解封装，得到共享密钥，其中，共享密钥是后量子密码算法生成的。通过上述技术手段，解决相关技术中星间光链路中后量子密码算法密钥协商延迟高、可靠性差等问题。

光子时钟同步芯片及光子时钟同步方法

Resumen de: CN122993864A

本申请适用于时钟同步技术领域，提供了一种光子时钟同步芯片及光子时钟同步方法。芯片的发射端，用于生成光学频率梳光信号，并将部分光学频率梳光信号转换为光学频率梳电信号，并对光学频率梳电信号进行分频处理和第一锁相环处理，以将本地压控振荡器锁定至光学频率梳光信号的光频梳齿间距，得到第一时钟信号，并根据第一时钟信号，按照SEUL‑693循环序列向接收端输出同步信号；芯片的接收端用于接收同步信号，并根据同步信号，生成与光学频率梳光信号同源的第二时钟信号，且根据第二时钟信号，生成同步脉冲；同步脉冲用于确保接收端的时钟与发射端的时钟同步。本方案在不需要外部参考时钟的情况下实现了时钟同步，降低了时钟同步的成本。

基于片上集成光频梳的并行量子密钥分发系统及方法

Resumen de: CN122993920A

本发明涉及量子密钥分发，具体涉及基于片上集成光频梳的并行量子密钥分发系统及方法，片上集成光频梳光源模块，利用单一泵浦光产生多个频率锁定的相干光载波；并行量子发射机模块，包含多个并行的发射单元，每个发射单元对一路相干光载波进行相位随机化、量子态编码和诱骗态调制；复用模块，对并行量子发射机模块输出的多路量子信号进行合路，并通过量子信道传输复用信号；解复用模块，接收来自量子信道的复用信号，并还原为多路独立的量子信号；并行量子接收机模块，包含多个并行的接收单元，每个接收单元对一路量子信号进行解调与单光子探测；本发明能够有效克服难以利用单一光源生成多个天生频率锁定、相位可控的相干光载波的缺陷。

一种高功率DFB阵列光源均衡方法

Resumen de: CN122993830A

本发明提供一种高功率DFB阵列光源均衡方法，涉及半导体激光器技术领域，生成分别对应多个目标光频率的相干参考光，并将各相干参考光分别注入对应的高功率DFB激光通道；采集各通道在数据调制器输入端的有效输出光功率和光场相位，根据光功率、目标光频率、通道传输效率及频率转换路径效率确定共同均衡功率和迁移光子通量；从功率过剩通道提取对应功率切片，将所述功率切片转换为功率不足通道的目标光频率，校正转换载波相位并将其相干合入功率不足通道主光路；根据均衡后的光功率、转换效率和相位误差修正提取比例、泵浦功率和相位校正量。

一种基于激光器相对强度噪声指纹的动态认证方法

Resumen de: CN122994022A

本发明涉及光通信物理层安全技术领域，公开了一种基于激光器相对强度噪声指纹的动态认证方法，本发明充分挖掘激光器相对强度噪声全工作区的唯一性特征，基于真随机偏置电流挑战序列构建一次一密的动态认证体系，每次认证的挑战序列无重复和不可预测，可抵御重放攻击；采用时域自相关+频域功率谱+高阶统计量的多维度特征融合，在宽温、宽电压波动范围内仍保持高认证准确率；不依赖基于数学复杂度的传统数字加密体系，以半导体激光器光电转换过程中的相对强度噪声为熵源，构建物理层安全认证体系，无任何可被量子计算破解的数学环节，从物理底层实现抗量子攻击；可直接适配标准半导体激光器，无需对激光器进行任何结构改造，减少硬件额外成本。

量子もつれを介した分散量子計算のためのモジュール式量子コンピューティングシステム

Resumen de: WO2025221285A2

Techniques for generating and maintaining a buffer of on-demand, pairwise quantum entanglement instances using programmable optical switchboard architectures within quantum repeaters are disclosed. A rate of establishing pairwise quantum entanglement instances between quantum repeaters of a quantum entanglement network may be higher than both a rate of decay of said instances and a rate of consumption of said instances for providing distributed quantum entanglement, such that on-demand distribution of quantum entanglement may be provided for customers. Furthermore, an optical switchboard with a given quantum repeater may be configured to route between any of the quantum memory locations provided within the quantum repeater, such that an optimization of the usage of such buffers of quantum entanglement instances may be ensured.

一种基于层间同步约束的量子纠缠态传输保全方法及其系统

Resumen de: CN122993935A

本发明公开了一种基于层间同步约束的量子纠缠态传输保全方法及其系统。所述方法将纠缠态中的每个量子比特分配到等腰梯形地址阵列的一个独立层上，相位编码为各层地址对相对于中心位置的偏移量；施加层间同步约束，保证所有层偏移量一致；传输过程中并行监测各层偏移量，当一致性被破坏时执行层间重同步；接收端从各层偏移量重建纠缠态相位信息。本发明通过层间同步约束保证了纠缠态中所有量子比特的相位漂移同步进行，避免非同步漂移导致的纠缠破坏，适用于量子纠缠分发网络、量子中继器、分布式量子计算等场景。

半导体器件及其操作方法

Resumen de: CN121356694A

An embodiment of the invention provides an optical integrated circuit device. An electronic and optical integrated circuit device for a convolutional neural network performs various aspects of analog-to-digital conversion (ADC) or digital-to-analog conversion (DAC) in an optical integrated circuit. The DAC may be performed using an optical modulator. Each light modulator receives a plurality of electrical input signals that collectively represent an input value or kernel weight. Electrical input signals are applied to different modulator segments. The modulator segments are combined to encode the digital data into corresponding analog optical signals. The ADC may include splitting the optical output signal and providing different degrees of attenuation for each signal shunt. Signals with different attenuation levels are converted into electrical output signals, which are compared to a reference voltage to determine a digital code. The attenuation level may be selected so that one reference voltage may be used for all comparisons. Embodiments of the invention also provide an electronic and photonic integrated circuit (EPIC) device and a method of operation thereof.

自适应纠缠光子对的相位噪声去除系统

Nº publicación: CN122962837A 23/10/2026

Solicitante:

北方工业大学

Resumen de: CN122962837A

本发明公开一种自适应纠缠光子对的相位噪声去除系统，该系统包括：脉冲泵浦光源（01），非线性晶体（1），带阻滤波器（2），第一、第二、第三光分束器（61、62、63），光耦合透镜（4）、第一、第二、第三单光子探测器（51、52、53），第一、第二可调光衰减器（11、12），第一、第二可调电控光相移器（21、22），光合束器（6），光隔离器（7），第一、第二光偏振控制器（81、82），2Í2光耦合器（9），数字信号处理模块（10），第一、第二数模转换器（101、102），第一、第二电放大器（201、202）。本发明采用自适应反馈结构与控制算法，实现纠缠光子对相位噪声的有效去除，以加强纠缠光子对的稳定性和抗干扰性，更好地满足量子通信系统的应用需求。