Resumen de: CN122844974A
本发明公开了一种N‑S磁场定向空间内的多源频谱叠加方法及系统,涉及物理场协同的无线传输与频谱搬移技术领域,旨在解决现有多源能量场叠加能量发散、耦合效率低、调控精度差、无闭环反馈的问题。本发明通过N‑S极向静态强磁场与高频脉冲耦合生成基础量子调控场,结合目标物质分子状态参数匹配目标声光频率,经调制生成多源频谱信号与声光调控波束,在磁场约束下叠加振荡生成矢量量子调控场,同时构建功效检测闭环修正链路。本发明实现电磁‑声‑光三物理场同轴叠加,提升能量耦合效率与调控精准度,可定向改变目标物质分子内聚势能,实现分子结构有序化稳定重构。
Resumen de: CN122845111A
本发明涉及激光通信技术领域,具体提供一种激光通信终端量子密钥分发方法,为解决现有技术仅以量子误码率作为密钥分发单一判定指标,导致低质量或不安全密钥流入业务加密环节的问题,本发明在自由空间光路就绪后执行弱光量子密钥分发,同时计算筛后比特串的量子误码率及有效探测率,将二者作为供钥的联合判定条件;仅当量子误码率不大于预设上限且有效探测率不低于预设下限时,才生成安全密钥并交付业务加密模块用于主链路数据加密,否则终止本轮分发。本发明可抑制低质量或不安全密钥进入通信链路,提升星地/空地激光通信数据加密的可靠性与安全性。
Resumen de: CN122844982A
本申请涉及量子信息科学技术领域,公开了一种多业务功能量子信息互联系统及多业务量子信息互联方法。其系统包括:第一量子信息互联接收子系统、量子纠缠光源子系统与第二量子信息互联接收子系统;量子纠缠光源子系统用于产生纠缠光子对,并分别发送到第一量子信息互联接收子系统和第二量子信息互联接收子系统;两个接收子系统采用相同的光量子信息传输与探测硬件架构,分别独立完成光子接收、调控与探测,获得同源时间戳数据;二者能够协同基于同源时间戳数据,通过不同后处理算法分别实现量子通信业务功能和时间同步业务功能。本申请实现了多业务功能的量子信息互联系统,为大规模量子信息互联网的业务功能扩展提供了可行方案。
Resumen de: CN122844983A
本发明公开了一种用于纠缠分发网络的自参考时间同步方法及系统,涉及量子通信技术领域;该方法包括:针对网络中配对形成Franson干涉测量支路的两个站点,获取两个单光子探测器的实时时间戳数据,汇总生成双光子到达时间差的符合计数直方图;基于预设臂长差时延划定左右边峰对应的时间窗口,计算左右边峰中心位置的实时估计值和两个站点之间的综合时钟‑链路时延;基于综合时钟‑链路时延对任意一个站点的原始时间戳进行平移补偿,完成单次时间同步;循环执行上述流程,实时跟踪综合时钟‑链路时延的变化,保证时间同步持续有效。该方法在不引入经典噪声、不额外占用光纤信道资源的条件下,实现了量子纠缠分发网络的高精度时间同步。
Resumen de: CN122844463A
本申请提供一种输变电设备的智能监测预警方法及系统,涉及电力设备监测领域。该方法包括:采集输变电设备关键节点的多源数据,多源数据包括电信号检测数据、设备使用数据、图像数据以及天气数据。运行隐关联分析模型,解析多源数据内隐关联和节点关联网络,构建知识图谱,知识图谱包括感知层、关联层和推理层。采集实时多源数据,运行知识图谱进行融合分析,生成设备状态评估结果与预警信息。通过混合通信层将设备状态评估结果、预警信息与多源数据发送至云端分析层进行显示,混合通信层包括量子通信主链路和可见光通信备用链路。解决了数据维度割裂和融合不足,导致缺陷识别产生误判漏判技术问题。
Resumen de: CN122844981A
本发明公开了一种基于双光子高维时间仓纠缠分发的多对多体静态纠缠制备方法。该方法在包含N个量子节点、每个节点包含m个静态量子比特的分布式系统中,利用高维时间仓编码的纠缠光子对,结合各节点前置的可编程光开关,控制光子与特定静态量子比特发生选择性相互作用,从而沿两条路径依次通过各节点以构建光子与所有静态量子比特的杂化纠缠态。随后对光子对实施广义X基测量,使静态量子比特系统发生投影坍缩,最后经相位校正并行制备出标准形式的多体静态纠缠态。本发明仅利用一个高维编码纠缠光子对即可完成非局域多体纠缠的高效并行生成,显著降低了光子传输损耗带来的影响,并有效减少了所需光子资源、时间资源及量子存储器相干时间要求。
Resumen de: CN122824383A
本申请是关于一种基于辅助粒子和部分纠缠态的概率受控密集编码纠错方法,该方法包括:通信三方共享部分纠缠GHZ态;控制方对第三粒子进行投影测量,得到控制方测量结果;发送方根据两比特经典信息对第一粒子进行泡利操作,利用受控非门将第一粒子的编码态复制到第一辅助粒子和第二辅助粒子,得到三个量子比特;接收方对三个量子比特进行错误检测,并对纠错后的三个量子比特执行解码操作,得到逻辑量子比特;对第三辅助比特和第二粒子执行联合酉变换,并对酉变换后的第三辅助比特进行投影测量,得到辅助测量结果;根据控制方测量结果和辅助测量结果对逻辑量子比特执行概率解码,以提取比特信息。本申请实现了部分纠缠态下的比特信息提取。
Resumen de: CN122824370A
本申请实施例提供了一种量子密钥传递方法、相关设备、存储介质及计算机程序产品,该方法应用于密钥分发中心(Key Distribution Center,KDC),该方法包括:KDC接收移动设备发送的会话密钥请求,并基于会话密钥请求对移动设备的身份信息进行验证处理,得到验证结果;在验证结果表征通过的情况下,向第一量子密钥分发(Quantum Key Distribution,QKD)节点发送密钥请求消息;其中,第一QKD节点包含与KDC相连的QKD节点;接收第一QKD节点发送的密钥请求响应消息;其中,密钥请求响应消息包括会话密钥;向移动设备发送会话密钥响应消息;其中,会话密钥响应消息包括加密后的会话密钥,以使移动设备基于加密后的会话密钥与服务器进行安全通信。
Resumen de: CN122824387A
本申请涉及一种基于量子密钥种子的数据传输方法、通信系统及存储介质,所述方法包括:发送端将原始数据帧进行喷泉码编码成编码符号并利用真随机的量子密钥种子生成的跳时控制序列进行发送至接收端,接收端通过传输通道接收编码符号流,通过与发送端相同的量子密钥种子和密码学安全伪随机数生成器,在本地再生相同的跳时控制序列;根据跳时控制序列在对应的时隙和/或波长通道接收编码符号;对收集到的编码符号进行喷泉码解码,恢复出原始数据帧;该技术方案,避免了量子密钥速率与数据速率的“剪刀差”缺陷,满足实时通信需求,并且量子密钥种子驱动的跳时图案生成,使得安全性同时建立在量子随机性和时间不确定性两个维度上,提升了数据通信的安全性。
Resumen de: US20260291620A1
The present invention describes a system and technique that utilizes Quantum Entanglement to enable completely secure communication that occurs at a speed faster than light. Based on this invention, the entanglement of particles can be exploited to transmit information instantaneously, i.e. at a speed faster than light, across large distances, with no scope of any unwanted interference or illegal intervention of any nature whatsoever.
Resumen de: DE102025111233A1
Die Erfindung schafft ein System und ein Verfahren zur Zeit- und Polarisationssynchronisierung von optischen Signalen zur Quantenkommunikation, das besonders sicher, zuverlässig sowie effizient ist. Das wird dadurch erreicht, dass ein System zur gleichzeitigen Zeit- und Polarisationssynchronisierung von optischen Signalen zur Quantenkommunikation einer Sendeeinheit (10) und einer Empfängereinheit (11) aufweist. Die Sendeeinheit (10) weist zwei oder drei, vorzugsweise vier, Laser (15 - 18) auf, durch welche die polarisierten Synchronsignale (24) mit mindestens zwei unterschiedlichen Frequenzanteilen erzeugbar sind. Außerdem weist das System einen Transmitter (27) zum Senden der Synchronsignale (24) auf, wobei die einen Receiver (29) aufweisende Empfangseinheit (11) einen Polarisations-Manipulator (31) zur Polarisationsänderung der empfangenen Signale und mindestens drei Module, nämlich Modul 1 (34), Modul 2 (35) und Modul 3 (36), zur Messung einer Polarisation und einer Zeitbasis der empfangenen Synchronsignale (24) aufweist. Zusammen mit den Synchronsignalen (24) ist ein externes Informationssignal (22) von der Sendeeinheit (10) versendbar und von der Empfängereinheit (11) empfangbar.
Resumen de: WO2026194019A1
The present application relates to a power system network attack detection method and apparatus based on quantum decision information, a computer device, a computer-readable storage medium, and a computer program product. The method comprises: acquiring an initial quantum state of a power system network, and constructing a quantum interference operation matrix of the power system network (S101); on the basis of the quantum interference operation matrix, adjusting the initial quantum state to obtain an adjusted quantum state as a state detection quantum state (S102), the state detection quantum state comprising a normal-state quantum state and an attack-state quantum state; on the basis of current power access data of the power system network and the state detection quantum state, obtaining power system attack information corresponding to the state detection quantum state (S103); and on the basis of the power system attack information corresponding to the state detection quantum state, identifying target state information of the power system network, the target state information comprising normal-state information or attack-state information (S104).
Resumen de: US20260287687A1
0000 A signal processing circuit includes: a first transmission line through which a pulse signal is transmitted; a SQUID including two magnetic field receivers that are magnetically coupled to the first transmission line in response to transmission of the pulse signal through the first transmission line; a second transmission line connected to a current source and the SQUID; and a delay circuit, disposed in the first transmission line to delay the pulse signal, located between respective parts of the first transmission line that are magnetically coupled to each magnetic field receiver. The delay time set for the pulse signal is shorter than the sum of the rise time and the fall time of the pulse signal. Magnetic fields input to the two magnetic field receivers are oriented in opposite directions such that a voltage signal transmitted through the second transmission line has a pulse width equal to the delay time.
Resumen de: EP4811022A1
Provided is a method for detecting presence of coherent light using a photonic processor. The method includes receiving data indicating, for an output of the photonic processor, a characteristic of the coherent light, the coherent light entering the photonic processor at at least two inputs. The method further includes generating a control signal for adjusting at least one parameter relating to the photonic processor such that the coherent light of the at least two inputs interferes in a way to increase the characteristic at the output. The method further includes determining the presence of the coherent light based on an analysis of the increased characteristic at the output.
Resumen de: WO2025125990A1
Methods and apparatus for generating quantum entanglement detect success of entanglement attempts by monitoring output signals from one or more detectors for heralding patterns indicating that a pair of quantum systems is in an entangled quantum state. In response to detecting a heralding pattern that indicates a successful entanglement attempt a low latency signal is output on one or more signal lines; and a higher latency message is transmitted by a messaging interface. The higher latency message contains information that identifies the pair of quantum systems entangled by the successful entanglement attempt. The pair of quantum systems may be inhibited from participating in further entanglement attempts while further entanglement attempts are performed on other pairs of quantum systems.
Resumen de: CN122783165A
本发明公开了一种基于拓扑保护的级联量子态传输中继装置及其控制方法。所述装置包括级联拓扑保护中继节点阵列(K个中继节点依次级联,各包含拓扑光子晶体量子存储器、拓扑陈数同步模块、纠缠交换单元、拓扑态转发单元、投影角同步模块和拓扑稳定性监测模块)、源端量子态编码单元、终端量子态解码单元、级联同步控制模块和保真度级联监测模块。拓扑陈数沿整条级联链路保持相等(C_source=C_R1=C_R2=…=C_RK);各中继节点投影角同步调制至θ=π/2(时间同步精度≤1ps);级联同步控制模块根据级联拓扑稳定性判据实时保障全链路稳定;保真度级联监测模块计算全链路总保真度F_total=∏F_i,当F_target≥0.90且F_hop≥0.99时支持≥10跳级联。本发明实现了宏观量子态的超长距离级联拓扑保护传输,总保真度≥0.90,适用于长距离量子通信网络和星际量子互联等场景。
Resumen de: CN122783230A
本发明公开了一种量子加密可信门禁发卡装置、发卡方法及门禁发卡器,涉及量子加密技术领域,装置包括:主控单元、数据写入模块、通信接口模块以及电源模块,还包括量子通信模块与量子密钥处理模块;量子通信模块集成量子信号发射器、接收器及调制单元,采用单光子偏振态通信技术,量子密钥处理模块内置量子密钥存储单元与校验算法单元,与量子通信模块信号连接,用于对接收的量子态应答信号进行基矢测量,结合交互随机数协商生成单次发卡有效的临时量子密钥种子,并完成密钥合法性校验;主控单元分别与量子密钥处理模块、数据写入模块电连接,用于调用临时量子密钥种子加密发卡数据,并控制数据写入模块将加密后的发卡数据写入门禁卡存储区域。
Resumen de: CN122783158A
本发明提供了一种基于SiGe阵列型单光子探测器的自由空间光通信系统,包括:发送端、自由空间链路及接收端;发送端设置有PPM调制器与1550nm激光器,PPM调制器用于将原始二进制数据映射为带有保护时隙的PPM符号数据,形成调制触发信号;1550nm激光器响应于调制触发信号,向自由空间链路发射单光子级激光脉冲;自由空间链路用于接收并传输单光子级激光脉冲,形成包含位置信息的单光子级光信号;接收端基于SiGe‑SPAD阵列及时钟恢复与PPM解调模块对单光子级光信号进行解调还原处理,得到还原的二进制数据。这样,实现了高集成度、低功耗、人眼安全波段、高灵敏度与高可靠性兼具的自由空间单光子级光通信。
Resumen de: CN122783238A
本发明公开了一种集成PQC后量子与MDI‑QKD多路量子密钥融合的服务器密码机,涉及量子密码技术领域,包括:机箱主体;多路MDI‑QKD量子密钥光路模块,用于基于测量设备无关量子密钥分发协议生成量子密钥,并通过多路量子光纤链路实现多个量子终端之间的密钥协商;与所述多路MDI‑QKD量子密钥光路模块连接的PQC后量子密码运算模块;与所述PQC后量子密码运算模块连接的硬件分区隔离调度模块,用于对不同业务任务进行物理隔离调度;与所述硬件分区隔离调度模块连接的量子签名可信审计模块,用于对密钥生成、密钥分发、业务运算以及设备操作过程生成可信审计日志;以及与外部设备连接的国密标准接口模块。
Resumen de: CN122783170A
本发明公开了一种基于单片集成相干阵光源的连续变量量子密钥分发系统及方法,包括:单片集成相干阵光源,输出N路空间分离且中心频率与初始相位内禀一致的激光;N‑1路电光调制模块,分别接收前N‑1路激光并加载高斯调制量子信号;可编程衰减器,接收第N路激光并将其功率调节至本振光工作区间;1×(N‑1)光分束网络,将衰减后的第N路本振光均匀分配至N‑1个平衡光电探测器的本振输入端;数字信号处理单元,接收各探测器输出的拍频电信号,执行共模相位噪声抵消与密钥提取。本发明利用相干阵光源内禀同频同相特性,以第N路光作为公共本振源实现多路并行零差探测,显著降低相位补偿噪声与系统复杂度。
Resumen de: WO2022015395A2
Systems for, and methods of, detecting an attack on an optical communication channel are presented. The techniques can include sending, from a sender to a receiver, and over the optical communication channel, an optical signal, where the optical signal includes a classical optical signal representing first information and a quantum optical signal representing second information. The techniques can include detecting, by the receiver, third information from at least a portion of the quantum optical signal and sending, by the receiver to the sender, the third information. The techniques can include determining, by the sender, an indication of an attack on the optical communication channel based on at least a portion of the second information and the third information. The techniques can include triggering an alarm based on the determining.
Resumen de: WO2026189010A1
Disclosed in the present invention are a quantum controller, a control system, a microwave line, and a quantum computer. The quantum controller comprises: a wavelength division demultiplexing module for dividing a received composite optical signal on a same signal line into a plurality of optical signals of different wavelengths. The wavelength division demultiplexing module is connected to a switching module, and the switching module is connected to a circuit module to form the quantum controller. The switching module is controlled to be turned on or off on the basis of the optical signals of different wavelengths, the circuit module is controlled, and a control signal sent to a quantum chip is adjusted. The quantum controller is constructed by using the wavelength division demultiplexing module for the optical signal and the circuit module, thereby reducing the number of required high-frequency microwave cables, reducing thermal loss on the line and attenuator loss, greatly reducing the number of considerable signal lines used in conventional qubit lines, and significantly reducing thermal load and thermal loss caused by signal lines.
Resumen de: WO2026192022A1
This conversion device comprises: a resonance unit having a resonance region that resonates a first electromagnetic field having a wavelength corresponding to an energy difference between a first level in a quantum material and a second level to which the quantum material can transition from the first level, and a second electromagnetic field having a wavelength corresponding to an energy difference between a third level in the quantum material and a fourth level to which the quantum material can transition from the third level and which is related to the second level; and a movement unit that, when a photon is introduced into the resonance region, moves the quantum material, which is in a quantum state of superposition of a first state corresponding to the first level and a second state corresponding to the third level, relative to the resonance region such that the intensities of the first electromagnetic field and the second electromagnetic field change in mutually opposite directions, thereby converting the quantum state of the quantum material into a photon in a quantum state reflecting the quantum state of the quantum material.
Resumen de: DE102025109510A1
Die vorliegende Erfindung betrifft eine Vorrichtung zur Analyse eines quantenmechanischen Zustands einzelner Photonen, die in einem Eingangsstrahl in die Vorrichtung gelangen, wobei die Vorrichtung ein optisches Strahlaufteilungselement, das eingerichtet ist, den Eingangsstrahl in mehrere Analysestrahlen aufzuteilen, eine Mehrzahl von Zustandsprojektoren, die eingerichtet sind, den quantenmechanischen Zustand der einzelnen Photonen auf einen jeweiligen Analysezustand zu projizieren, wobei jedem Analysestrahl ein Zustandsprojektor zugeordnet ist, und eine Mehrzahl von Einzelphotonendetektoren zur Detektion der einzelnen Photonen, wobei jedem Analysestrahl ein Einzelphotonendetektor zugeordnet ist, aufweist, wobei benachbarte Einzelphotonendetektoren einen Abstand von höchstens 5 mm, bevorzugt von höchstens 1 mm, weiter bevorzugt zwischen etwa 50 µm und etwa 150 µm, noch weiter bevorzugt von etwa 100 µm aufweisen.
Nº publicación: WO2026189701A1 17/09/2026
Solicitante:
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED CO [GB]
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
Resumen de: WO2026189701A1
This invention provides a quantum memory device, and a method of operating the quantum memory device, the quantum memory device comprising: a structure defining a plurality of vapour containment channels extending through the structure, each vapour containment channel containing vapour; and a controller configured to selectively: couple a first optical signal to a first vapour containment channel of the plurality of vapour containment channels, wherein the first optical signal contains 10 information, and control storage of the information of the first optical signal in the first vapour containment channel.