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基于量子密钥种子的数据传输方法、通信系统及存储介质

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。

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

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。

SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING METHOD

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.

System and Method for Secure Communication at a Speed Faster Than Light

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.

System und Verfahren zur Zeit- und Polarisationssynchronisierung von Signalen zur Quantenkommunikation

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.

POWER SYSTEM NETWORK ATTACK DETECTION METHOD AND APPARATUS BASED ON QUANTUM DECISION INFORMATION, AND COMPUTER DEVICE

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).

APPARATUSES AND METHODS FOR DETECTING QUANTUM ENTANGLEMENT AND MANAGING GENERATION OF QUANTUM ENTANGLEMENT

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.

METHOD, COMPUTER PROGRAM, APPARATUS, SYSTEM

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.

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

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。

一种量子加密可信门禁发卡装置、发卡方法及门禁发卡器

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。

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

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。

集成PQC后量子与MDI-QKD多路量子密钥融合的服务器密码机

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。

使用量子技术的安全经典光学通信

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.

基于SiGe阵列型单光子探测器的自由空间光通信系统

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。

QUANTUM CONTROLLER, CONTROL SYSTEM, MICROWAVE LINE, AND QUANTUM COMPUTER

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.

Hochintegrierter Empfänger für Quantenschlüsselaustausch

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.

QUANTUM MEMORY DEVICE

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.

Q-SENSE: A QUANTUM SENSOR SYSTEM FOR ALL COMMUNICATIONS AND PUBLIC SAFETY

Resumen de: US20260280725A1

0000 Q-SENSE: A Quantum Sensor System comprising a Quantum Transceiver Antenna (QTA) having a layered matrix of antenna pixels and toroidal geometries is disclosed. The Sensor may be configured as a smart module to instruct the QTA. Establishing communications integrated or coupled with independent sensor functionality for any kind of situational awareness or public safety, including real-time material signature identification. The QTA renders solid materials—including rock, buildings, underground structures, and Faraday cages—effectively invisible, providing both communications and situational awareness where traditional radios, mobile communications, cameras and sensors fail. Using quantum principles, including quantum tunneling, the QTA operates broadband and far exceeds Chu-Harrington limitations as an electrically small radiator from below 20 Hz through low-IR to high-IR and new quantum-derived spectra to beyond 1 THz. The Quantum Sensor System allows configurations to simultaneously function as an all-in-one smoke, fire, gas, CO, CO<2>, explosive, and organic-materials sensor, connectivity router, camera, and three-dimensional (X, Y, Z including altitude) GNSS asset-tracking device. Thin-film metamaterial fabrication, artificial-intelligence-driven analysis, and quantum digital power harvesting enable portable, wearable, vehicle-mounted, satellite, spacecraft, and drone-deployed operation for first-responder safety, Smart City, industrial monitoring, resource map

CONVERSION DEVICE, CONVERSION METHOD, AND QUANTUM INFORMATION PROCESSING SYSTEM

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.

QUANTUM ROUTER, QUANTUM INFORMATION RELAY METHOD, QUANTUM NETWORK SYSTEM, AND QUANTUM COMPUTER

Resumen de: WO2026191813A1

A quantum router 1 for relaying quantum information within a quantum network comprises: a Bell measurement unit 11 for performing Bell measurements on two quantum states; a first entangled photon receiving unit 14 for receiving a first photon having a first quantum state from the quantum network; a second entangled photon receiving unit 15 for receiving a second photon having a second quantum state from the quantum network; a first quantum memory 12 connected between the Bell measurement unit 11 and the first entangled photon receiving unit 14; a second quantum memory 13 connected between the Bell measurement unit 11 and the second entangled photon receiving unit 15; and a control unit 16. The first quantum memory 12 includes a first quantum bit array AR1 composed of a plurality of rows and a plurality of columns. The second quantum memory 13 includes a second quantum bit array AR2 composed of a plurality of rows and a plurality of columns. The first entangled photon receiving unit 14 distributes the first quantum state to each row of the first quantum bit array AR1. The second entangled photon receiving unit 15 distributes the second quantum state to each row of the second quantum bit array AR2. The first quantum memory 12 transfers the first quantum state toward the Bell measurement unit 11 within the first quantum bit array AR1. The second quantum memory 13 transfers the second quantum state toward the Bell measurement unit 11 within the second quantum bit array AR2. Upon

VAPOUR CONTAINMENT ARRAY

Resumen de: WO2026189702A1

This invention provides a vapour containment array, a system comprising the vapour containment array, and a method of manufacturing the vapour containment array, the vapour containment array comprising: a housing defining an interior section containing vapour; and a structure, positioned within the interior section of the housing, the structure defining a plurality of vapour containment channels extending through the structure, wherein: a first end of the first vapour containment channel is open to the interior section of the housing for fluidic communication between the interior section of the housing and the first vapour containment channel; and the housing comprises: a first optical signal interface configured to couple a first optical signal with a first vapour containment channel of the plurality of vapour containment channels, and a second optical signal interface configured to couple a second optical signal with the first vapour containment channel, wherein an interaction between the first optical signal and the vapour contained in the first vapour containment channel induces Electromagnetically Induced Transparency, EIT, to the second optical signal in the first vapour containment channel.

SURFACE CODE COMPUTATIONS USING AUTO-CCZ QUANTUM STATES

Resumen de: EP4807636A2

Methods and apparatus for performing surface code computations using Auto-CCZ states. In one aspect, a method for implementing a delayed choice CZ operation on a first and second data qubit using a quantum computer includes: preparing a first and second routing qubit in a magic state; interacting the first data qubit with the first routing qubit and the second data qubit with the second routing qubit using a first and second CNOT operation, where the first and second data qubits act as controls for the CNOT operations; if a received first classical bit represents an off state: applying a first and second Hadamard gate to the first and second routing qubit; measuring the first and second routing qubit using Z basis measurements to obtain a second and third classical bit; and performing classically controlled fixup operations on the first and second data qubit using the second and third classical bits.

面向工程约束的卫星量子密钥分发系统性能优化系统

Resumen de: CN122764499A

本发明公开了一种面向工程约束的卫星量子密钥分发系统性能优化系统，包括：参数输入模块用于获取基础参数集；动态时变链路损耗计算模块用于构建动态时变星地量子信道模型，基于动态时变星地量子信道模型，并根据基础参数集，计算不同仰角下的总链路损耗；有限码长可组合安全密钥长度计算模块用于根据基础参数集和总链路损耗，并采用双诱骗态BB84协议，计算得到单次卫星过境的安全密钥长度；多约束优化设计模块用于根据安全密钥长度，对工程约束不确定性进行优化，得到优化结果；设计参数与性能预测输出模块用于整合优化结果，输出系统设计参数。本发明的系统输出可直接落地的优化参数和资源规划方案，提升了设计阶段的可靠性和置信度。

一种基于双微环克尔光频梳的频率分集阵列信号发生装置及方法

Resumen de: CN122764368A

本发明属于微波光子与雷达信号处理技术领域，公开了一种基于双微环克尔光频梳的频率分集阵列信号生成装置及方法。装置包括：单波长激光器、分束器、由双平行马赫‑曾德尔调制器构成的移频器和克尔光频梳发生器A组成的第一支路、由克尔光频梳发生器B构成的第二支路、合束器、波分解复用器以及光电探测器阵列。单波长激光经分束后，一路经移频后泵浦克尔光频梳发生器A产生第一光频梳，另一路直接泵浦克尔光频梳发生器B产生第二光频梳；两路光频梳合路后经波分解复用器将不同阶数梳齿配对输出，再由光电探测器阵列拍频生成频率呈等差分布的微波信号序列。本发明具有本底噪声低、集成度高、带宽大、通道一致性好、频率增量可灵活调谐等优点。

基于量子探测的空芯光纤损耗测试系统及方法

Nº publicación: CN122764329A 15/09/2026

Solicitante:

电子科技大学

Resumen de: CN122764329A

本申请涉及量子精密测量科学技术领域，公开了一种基于量子探测的空芯光纤损耗测试系统及方法；包括：脉冲激光器；环形器；待测光路，包括第一空芯光纤连接器、第一空芯光纤和第二空芯光纤连接器；第一空芯光纤连接器的一端与环形器的第二端口连接，另一端与第一空芯光纤的一端连接；第一空芯光纤的另一端与第二空芯光纤连接器连接；单光子探测器，用于接收后向光信号，将其转换为电脉冲信号，并对电脉冲进行计数；时间数字转换器，其输入端与单光子探测器的输出端连接，用于分别统计第一空芯光纤连接器和第二空芯光纤连接器中实心光纤长度所对应时段的电脉冲个数，电脉冲个数用于计算空芯光纤链路的整体损耗。本申请能够准确测量空芯光纤损耗。