Resumen de: CN122372203A
本发明涉及量子密钥分发,具体涉及基于被动偏振编码的BB84量子密钥分发系统及方法,包括发送端Alice、接收端Bob和量子信道,发送端Alice包括被动编码发射机,被动编码发射机包括预报单光子源模块和全被动偏振编码模块;预报单光子源模块,产生信号‑闲置单光子对,信号光子由单光子探测器探测,其探测事件作为整个系统的预报时间基准,闲置光子进入全被动偏振编码模块;全被动偏振编码模块,将闲置光子随机分配至相应光路,并在光路内映射为BB84的四种偏振态中的一种,同时使得每种偏振态对应一个固定时间延迟,形成时间延迟标签;本发明提供的技术方案能够有效克服现有技术所存在的难以兼顾完全被动、高安全性、低系统复杂度和工程实用化的缺陷。
Resumen de: CN122362603A
本发明涉及透镜耦合领域,具体的说是指一种可调焦距透镜阵列与Micro‑LED阵列耦合系统,包括透镜阵列层及设置在透镜阵列层一侧表面的驱动模块阵列层,所述驱动模块阵列层的一侧表面设置有散热缓冲复合层,所述散热缓冲复合层的一侧表面设置有Micro‑LED阵列,所述透镜阵列层、驱动模块阵列层、散热缓冲复合层和Micro‑LED阵列之间填充有透明胶水;所述透镜阵列层包括多个透镜单元。定位连接在底层Micro‑LED阵列基板与第二层散热缓冲复合层,可以通过导热绝缘粘接层全贴合固定,复合层中的避让孔与Micro‑LED发射单元采用同轴定位工艺,定位精度±0.5μm,确保光轴同轴,而第二层散热缓冲复合层与第三层驱动模块阵列层,通过微型定位销机械定位+导电胶粘接固定。
Resumen de: CN122372080A
本发明公开了一种基于压电扫描台的小型机载光通信系统,包括粗跟模块、精跟模块和信号收发模块;通信发射端的多模激光器发射粗信标光,经发射透镜的准直后出射,在自由空间中传播一段距离后照射到对面接收望远镜的粗跟模块中,接收望远镜中的粗跟接收镜头将粗信标光聚焦到粗跟相机靶面中,接着根据聚焦光斑的位置误差信号来调整云台的指向角,完成通信双方的初始捕获和对准。本发明小型轻量化,整个系统的重量控制在1 kg左右,高跟瞄精度,精信标回路中的相机能分辨出高达4.7 µrad的光线视场角变化;低链路损耗,能够精准调节单模光纤的位置,使得耦合效率最高,同时系统中的所有镜片都镀了响应波长的增透膜,提高了系统本身的透过率。
Resumen de: CN122372102A
本发明实施例提供一种宽带相位匹配控制方法、系统、设备及存储介质,属于集成光子学技术领域。所述方法包括:获取色散参数和泵浦参数,计算对应各频率点的相位失配参数;计算对应各频率点的最优非线性作用长度,并构建频率与最优非线性作用长度之间的映射关系;构建空间作用长度调度函数,并将空间作用长度调度函数转换为对应非线性作用过程的控制参数分布,以对非线性波导中的非线性作用过程进行调度控制;在执行调度控制过程中,获取对应各频率通道的输出参数,并对空间作用长度调度函数进行更新,以输出多频通道输出结果。本发明方案在宽带条件下实现多频通道非线性作用过程的自适应调度控制,从而提升各频率通道输出的一致性与稳定性。
Resumen de: CN122372487A
本发明公开了一种量子网络拥塞感知动态纠缠纯化提升吞吐量方法,属于量子网络通信技术领域。本方法包括:构建包含节点数、链路数及节点交换成功率的量子网络模型,初始化网络全局变量与网络参数;生成不同节点对之间的通信请求并设置保真度阈值;基于加权优先级公式综合路径长度与纠缠交换成功率选择低成本纠缠路径;通过保真度逐跳退化特性确定纯化位置,利用概率纯化特性确定纯化次数,并引入链路拥塞因子动态调整纯化策略以缓解网络拥塞。本发明有效降低了建立不相邻节点间纠缠的时间与资源成本,显著提高了满足保真度要求的网络吞吐量,实现了纠缠资源的高效利用与多并发请求的良好支持。
Resumen de: CN122372189A
本发明属于连续变量量子密钥分发技术领域,具体涉及一种基于步长自适应符号恒模算法的数字信号偏振恢复方法。针对现有偏振恢复算法在计算复杂度与收敛性能之间难以平衡的问题,本发明通过引入一种由线性项与二次项加权构成的误差调控步长更新策略、基于符号信息的系数更新方法以及基于接收信号总功率的归一化误差函数,在提升收敛速度与稳态性能的同时降低了计算复杂度,实现了高性能、低复杂度的实时偏振恢复。
Resumen de: CN122372988A
本申请实施例提供一种量子通信方法和装置。该方法包括:通过第一终端部署的量子随机数生成组件生成第一量子随机数,并接收来自第二终端的第一数值,即可根据第一数值与第一量子随机数确定加密密钥,并根据加密密钥对待传输至第二终端的通信数据进行加密处理,生成加密数据,其中,第一数值是基于第二终端上部署的量子随机数生成组件生成的第二量子随机数确定的,加密数据用于传输至第二终端解密,以使第二终端获取通信数据。该方法能够提升量子通信过程安全性。
Resumen de: CN122372119A
本发明公开了一种基于量子压缩感知的认知无线电频谱感知装置及方法,属于认知无线电技术领域。针对现有技术中存在的问题,通过设计一种基于量子压缩感知的认知无线电频谱感知装置,所述装置包括宽带天线模块、电光调制微波光子转换模块、数据采集模块和认知无线电信号检测算法模块,各模块依次连接,共同完成从信号接收到频谱分析的全过程;本发明利用量子压缩感知实现亚奈奎斯特采样和高压缩率的宽带多频率微波信号频谱测量,同时实现当光子计数率提升至2 Mcps、积分时间40 ms时,检测概率逼近100%,为认知无线电频谱感知、决策和切换提供了一种新的策略。
Resumen de: US20260197345A1
0000 Methods, apparatus, and computer program products for quantum communications and quantum information processing are provided. An example method includes determining a received state of a qubit received via a quantum communication link where the received state includes one or more properties of the received qubit. The method further accesses a transmitted state of the qubit where the transmitted state includes one or more properties of the qubit as transmitted. The method continues by comparing the one or more properties of the qubit in the received state with the one or more properties of the qubit in the transmitted state. Finally, the method detects a condition of the quantum communication link based on the comparison between the received state and the transmitted state. In doing so, the embodiments operate to characterize the noise level, security, etc. of a quantum communication interconnect, link, or channel.
Resumen de: 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.
Resumen de: US20260197092A1
0000 Photonic interposers that enable low-power, high-bandwidth inter-chip (e.g., board-level and/or rack-level) as well as intra-chip communication are described. Described herein are techniques, architectures and processes that improve upon the performance of conventional computers. Some embodiments provide photonic interposers that use photonic tiles, where each tile includes programmable photonic circuits that can be programmed based on the needs of a particular computer architecture. Some tiles are instantiations of a common template tile that are stitched together in a 1D or a 2D arrangement. Some embodiments described herein provide a programmable physical network designed to connect pairs of tiles together with photonic links.
Resumen de: WO2026146687A1
According to various embodiments of the present disclosure, a method performed by a first node is provided, the method comprising the steps of: transmitting, to a second node, information related to initial fidelity and target fidelity of an Einstein-Podolsky-Rosen (EPR) pair, the number of rounds in which an entanglement distillation protocol (EDP) is performed, and an EDP type; transmitting, to the second node, information related to the entanglement state of the EPR pair; determining an optimal EDP mode for optimal EPR yield; transmitting, to the second node, information about the optimal EDP mode for the optimal EPR yield; and performing the EDP on the basis of the optimal EDP mode.
Resumen de: 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.
Resumen de: WO2026146581A1
Problem To achieve a communication method that makes it possible for communication speed to exceed the speed of light. Solution A plurality of quantum particles having quantum entanglement are disposed such that one or more quantum particles are disposed on each of a transmission side and a reception side and the quantum entanglement is present at least between the transmission side and the reception side. When information is transmitted, the quantum entanglement is changed by an operation for changing the identifiability of a quantum state on the transmission side. When the information is not transmitted, the operation is performed on the transmission side such that the quantum entanglement becomes different from that when the information is transmitted (the operation includes doing nothing since it is only necessary that the quantum entanglement is different from that when the information is transmitted). Measurement is performed on the reception side after the operation on the transmission side, and information for detecting the transmission of the information from the transmission side is obtained. In this way, a communication speed exceeding the speed of light can be achieved.
Resumen de: EP4773543A1
According to an arrangement, a QKD device (2) includes a detection unit (21), a monitoring unit (24), and a switching control unit (25). The detection unit (21) is configured to detect a quantum signal by photons transmitted from a transmitting quantum key distribution (QKD) device. The monitoring unit (24) is configured to monitor monitoring information including a parameter based on the quantum signal. The switching control unit (25) is configured to transmit, to the transmitting QKD device (1), a switching signal for switching from a normal mode to a debug mode for enhancing intensity of the quantum signal by a predetermined value, based on the monitoring information.
Resumen de: CN122348821A
本发明涉及量子通信传输技术领域,公开了一种连续变量量子密钥分发系统参数估计方法及系统,其中,方法包括:获取原始数据缓冲池中的原始数据;采用索引抽样方法输出抽样数据;采用消息鉴别码校验方法输出鉴别通过的复用抽样数据;采用分组相位搜索方法输出分组相位估计值;采用分段线性插值补偿方法输出相位补偿数据;进行信道参数估计和安全码率判定。由于本申请通过复用相位补偿过程和参数估计过程的公开信息,并对网络交互数据进行消息鉴别,实现了在保证参数计算精度的同时提高原始数据利用率和成码率,并保证连续变量量子密钥分发系统的准确性和安全性。
Resumen de: CN122339615A
本发明适用于智能电网技术领域,涉及一种基于多模通信配电网台区量子时频同步方法及系统,提出“主基准量子同步+集中器量子守时+终端设备多模信道广播同步”的三级架构:主基准单元通过量子纠缠与台区集中器实现纳秒级同步;台区集中器内置CPT原子钟,在公网中断时自主守时;台区集中器通过通信网络广播同步信标帧,终端设备结合信道延迟补偿实现微秒级同步。本发明通过台区集中器双机冗余、信道延迟动态校正、终端设备自主守时等机制,确保同步可靠性和准确性,利用现有通信网络基础设施,支持百万级电表规模化部署,为台区拓扑识别、线损分析等应用提供高精度时间基准。
Resumen de: CN122339670A
本发明公开了一种基于原子‑光子纠缠的量子隐形传态方法:步骤1:Alice和Bob制备不同初始状态的原子序列。步骤2:Alice生成参考光脉冲与信号光脉冲,经时分复用在信道中传输。步骤3:Alice操纵信号光脉冲与原子相互作用产生纠缠态,经量子信道传输后相干光与Bob的原子建立纠缠,以此完成三粒子纠缠。步骤4:Alice将原子序列划分,Bob进行信道安全性检测。步骤5:信道安全后,Alice将秘密信息编码于信息序列原子上并公布测量结果。步骤6:Alice对携带信息的原子序列做Hadamard门操作。步骤7:Bob解调出秘密信息。本发明充分利用长退相干时间的原子‑光子纠缠资源,满足高信道容量、高链路效率的通信需求,为构建大规模、抗损耗的量子互联网提供了可行途径。
Resumen de: CN122339580A
本发明提供了一种空间操作系统多源信号光子语义映射协议及系统,涉及空间计算、混合现实、空间互联网、硅基光子学及全光传输领域。该系统将面向空间操作系统的空间数据统一组织为专用复合空间数据结构,并构建协议对象;通过光子语义映射形成对象化光子执行簇;通过主相干源分发相位基准波,并结合硬件对齐实现跨源物理层对齐;通过确定性调度实现路径控制和优先执行;通过安全执行与熔断实现审计、物理熔断、降级执行及黑箱留痕。所述空间数据可来源于电域输入、射频域输入、量子域输入或其组合。该系统可提高空间显示、空间交互、空间控制及空间安全处理中的一致性、稳定性和抗规避能力。
Resumen de: CN122339583A
本发明涉及光通信技术领域,尤其涉及基于定向光通信的近场数据防窃听传输方法及系统,该方法通过构建非正交基底张量网络,将保密信息对应的量子态进行分布式纠缠与投影,生成具有拓扑保护的量子态表示。随后将其与定向光场耦合调制,利用轨道角动量和偏振控制,使量子相干性仅限特定方向。传输后,接收端通过方向匹配解调与联合测量进行重构。通过实时监测信道噪声与散射,动态调整网络拓扑与纠缠权重,将噪声分量重定向至散射路径。本发明实现了信息仅在预设方向上的可靠传输,有效增强了近场数据传输的防窃听能力。
Resumen de: CN122339612A
本发明适用于智能电网技术领域,涉及一种配电网台区量子时频同步方法及系统,包括:部署台区主基准单元于配电变压器侧,用于产生高精度基准时间信号并向台区内分发纠缠光子对;部署多个从节点同步单元于各智能终端设备,用于接收纠缠光子对并记录光子到达时间;通过符合计数原理计算各从节点与主基准单元之间的实时量子钟差;根据量子钟差,通过自适应反馈控制模块驯服本地CPT原子钟,实现与主基准单元的时间同步;实时监测台区通信网络状态,根据网络状态自动切换闭环控制模式或开环保持模式。本发明实现了配电网台区去公网化的高可靠性和高准确性同步,具备抗欺骗攻击能力,为配网设备提供了安全、精准的时间基准。
Resumen de: CN122339604A
本申请公开了一种基于量子干涉的异地多节点网络信号同步装置,包括:部署在每个节点本地的光频梳生成模块、滤波处理模块和调节模块,以及部署在节点外部的干涉模块;进行信号同步的任意两个节点的光频梳生成模块,分别用于在节点本地生成独立的光频梳,其中,光频梳通过锁定泵浦激光频率与光频梳重复频率实现频率对准;滤波处理模块,用于从各自的光频梳中滤出为任意两个节点分配的同频梳齿;干涉模块,用于将任意两个节点的同频梳齿进行合束干涉,并将任意两个节点光信号间的相对时间偏差发送给任意两个节点中目标节点的调节模块;调节模块,用于根据相对时间偏差进行调节。本申请解决星型网络架构存在的单点故障以及网络拓扑灵活性较差的问题。
Resumen de: CN122339695A
本发明涉及光通信和量子密钥分发技术领域,公开了一种集成量子随机数发生器芯片,包括集成光芯片和电子学处理模块,集成光芯片与电子学处理模块集成封装,所述集成光芯片包括超辐射二极管、光路转换模块、激光二极管、非对称马赫‑曾德尔干涉仪和光电探测模块,各模块采用同一外延层或异质键合方式集成于同一光芯片;电子学处理模块包括放大模块、信号采集模块、后处理模块。与现有技术相比,本发明在高重复频率下,也能大幅降低LD脉冲间的相位关联度,确保相位在0~2π范围内均匀随机分布,解决了现有方案高速工作时随机性不足的核心缺陷;实现全系统集成封装,大幅减小器件体积、降低功耗,满足便携式、嵌入式量子安全设备的部署需求。
Resumen de: CN122339693A
本发明公开了一种基于二维单光子态的多方半量子秘密大小比较方法,首先,各参与方共享密钥并加密各自秘密,保持数值大小关系不变;半诚实量子第三方STP随机用Z基或X基制备二维单光子序列分发给各参与方;参与方根据加密位值对每对相邻光子执行相应操作后发回STP;STP接收发回的光子,解码得到加密数据串;经安全检测后,STP对各数据串逐位执行异或运算,判定多方秘密的大小关系。本发明采用实验易制备操控的二维单光子态替代高维态或纠缠态,仅需标准光学器件,显著降低实现难度;结合加法加密与异或比较规则,在保护隐私的同时实现大小比较,解决了现有方法物理实现困难、安全性下降的问题,具有经济、高效、可落地的技术效果。
Nº publicación: AU2024440837A1 02/07/2026
Solicitante:
THE RESEARCH FOUNDATION FOR THE STATE UNIV OF NEW YORK
THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
Resumen de: AU2024440837A1
A Quantum-enabled Internet (QEI) including quantum-enabling networking architectures integrating advanced communication systems with long-distance quantum communication hardware and methods of operating the same. Using a quantum-network (QN) design paradigm, there is provided a physics-centric stack-based quantum network paradigm to govern the dynamics of multiple light-matter Hamiltonians across distant nodes. This QN network facilitates a fundamental long-distance quantum network service - that of high-visibility Hong-Ou-Mandel interference of telecom quantum states generated in two independent, telecom-compatible quantum light-matter interfaces separated by a distance. The QN paradigm design can be applied to demonstrate scalable long-distance QN services in an QN infrastructure, including the transmission of polarization entanglement created by high repetition sources of entangled photons and the storage of telecom polarization entanglement using remotely located quantum memories capable of heralding the storage of entanglement using non-demolition measurements and quantum state tomography.