127 results about "Quantum network" patented technology

The invention relates to an entanglement request scheduling method based on a quantum network. Comprising the following steps: firstly, establishing a routing path selection method of a single remote request, and selecting a routing path with the highest end-to-end fidelity for each request; establishing a two-stage request scheduling strategy; and finally establishing a comprehensive evaluation mechanism based on the network throughput, the fairness index and the request service rate. Through the setting, in a quantum network purification operation scene, the end-to-end fidelity is used as a key index of request priority ranking, a refined fidelity evaluation model is established, resource requirements and application values of different entanglement requests are accurately quantified, high-fidelity requests are preferentially scheduled to enter a resource allocation queue, and the resource allocation efficiency is improved. Meanwhile, the resource loss characteristics in the purification process are dynamically adapted, dual optimal configuration of entangled resources in the time dimension and the space dimension is achieved, the service quality of high-value requests is guaranteed, resource idleness and waste are avoided, and the overall resource utilization rate is remarkably increased.

The invention discloses a multi-modal medical feature fusion and classification method and system based on quantum enhancement, and belongs to the field of quantum computing and medical intersections, and the method comprises the following steps: S1, obtaining multi-modal medical data of a target patient; s2, preprocessing the medical data of each modal; s3, extracting features of the preprocessed modal medical data, and performing collaborative alignment; s4, performing multi-modal feature fusion based on a quantum self-attention mechanism; and S5, constructing a task specific prediction head for different tasks based on the fused features, and obtaining multi-task multi-label output. According to the method, the robustness of information of different scales is improved through intra-modal global-local dual-channel feature extraction, the feature utilization problem in a modal missing scene is solved through collaborative feature and special feature decomposition, and nonlinear feature fusion is realized in a high-dimensional heterogeneous space by using a quantum network.

The invention provides an ISP network abnormal state automatic detection method based on a deep learning algorithm, and the method comprises the steps: collecting multi-dimensional data of an ISP network, extracting time sequence features and topological structure features from the multi-dimensional data, splicing the time sequence features and topological structure features into a fusion feature vector, inputting the fusion feature vector into an ISP network state abnormality monitoring model based on an LSTM-GNN-VAE hybrid model, and carrying out the automatic detection of the abnormal state of the ISP network in an encoder. The LSTM sub-network is used for processing the time sequence characteristic data to obtain a time sequence coding vector, the GNN sub-network is used for processing the topological structure characteristics to obtain a topological coding vector, the time sequence coding vector and the topological coding vector are spliced to obtain a fusion vector, the fusion vector is mapped to a potential space, and a mean value and a variance of potential distribution are output; the decoder generates potential vectors through a re-parameterization technique according to the mean value and variance of the potential distribution, maps the potential vectors back to an original feature space, and reconstructs a comprehensive feature vector. Through targeted processing of the multi-dimensional data, the model is optimized in combination with a plurality of set optimization strategies, and the accuracy of ISP network state anomaly detection is effectively improved.

A system for quantum-enhanced behavioral analysis and secure database operations includes an ACAARY Database configured to store and process quantum-verified data under multi-tiered access control; an AR Quantum Cyber-Micro Expressions System configured to analyze involuntary behavioral patterns in digital communications via computational analysis of user interaction data; AR Quantum Sequence Triplications with Quantum Operations comprising three-qubit verification circuits implemented on superconducting quantum processors that perform parallel artificial-qubit processing to achieve unbiased quantum supremacy; an AR Quantum Parallel Data Algorithm Structure and Method Specialized Encrypted Algorithmic Quantum Procedures configured to execute simultaneous perpendicular encryption processing with real-time transaction verification across multiple channels; an AR Helmsmen Quantum Transportation Management System with integrated digital licensing and frequency-based quantum routing protocols; and an AR Thermodynamics Devices System configured to perform thermal bonding and division operations while maintaining different temperatures within defined containment areas for material modification.

The invention discloses a source device independent quantum key distribution method, device and system and a network thereof, and belongs to the technical field of quantum key distribution. In order to solve the problem that an existing quantum key distribution protocol depends on a source end security hypothesis and is difficult to defend unknown source side attacks, the invention provides a source equipment-independent quantum key distribution protocol. Through the physical characteristics of the non-classical quantum light source and a pairing method after measurement, the security hypothesis of source end equipment is removed, known and unknown source side attacks can be effectively resisted, and the quantum advantages in the aspects of security and performance expression compared with a classical laser source are realized. The invention further provides a method for directly expanding the point-to-point protocol to the multi-user quantum key distribution network, compared with an existing quantum network based on an entangled photon source, the complexity of an experiment system and the requirement for equipment are reduced, and the method is suitable for long-distance and high-safety quantum communication and quantum network deployment.

Quantum networks having topologies defined by connected entanglement graphs which comprise plural vertices connected by plural edges are disclosed. The entanglement graphs are not all-to-all connected. The entanglement graphs may be non-planar graphs. At least some of the vertices are connected to three or more of the edges. Nodes of the quantum network correspond to vertices of the entanglement graph. Entanglement means are operable to directly entangle quantum systems in those pairs of the nodes which respectively correspond to vertices of the entanglement graph that are connected by an edge of the entanglement graph. Optical paths used by the entanglement means may include optical paths provided by braids or knots that are configured to interface to one or more units which include the nodes.

A method for routing in a quantum network is provided. The method may include receiving parameters including a fidelity with coherence decay time and an entanglement generation rate for each quantum node in a mesh quantum network by a controller, the controller being configured to communicate with each quantum node of a plurality of quantum nodes in the mesh quantum network. Each quantum node includes a quantum memory and a processor. The method may also include analyzing the fidelity with coherence decay time and the entanglement generation rate to yield a determination of a path fidelity with a path coherence decay time and a path entanglement generation rate between at least one pair of quantum nodes. The method may further include, based on the determination, selecting a quantum communication path from a source node to a destination node.

Embodiments of systems providing quantum cyber resilience protection of digital assets of a computer system in transit from tampering and / or decrypting including quantum computer cryptographic attacks.

The invention provides an apparatus for quantum communication in a quantum network configured to create an entangled pair of quantum information carriers comprising a first quantum information carrier and a second quantum information carrier, transmit the first quantum information carrier to a remote device, store the second quantum information carrier in a quantum memory, receive, from the remote device, information about a phase correction related to the transmission of the first quantum information carrier, and apply the phase correction to the second quantum information carrier.

A quantum simulation method is provided. The method includes receiving, as an input, a specification (902) of a quantum network protocol associated with a quantum network (100). The quantum network is a distributed network including a plurality of nodes (10a-f). A local quantum system (12a-f) is disposed at each respective node of the plurality of nodes during at least a portion of the quantum network protocol. The quantum network protocol includes a sequence of operations. The sequence of operations includes one or more local quantum evolution operations (20a, 20c, 50b), wherein a local quantum evolution operation evolves a local quantum system disposed at one of the nodes. Further, (a), (b) or (c), or any combination thereof, is provided. Therein, according to (a), the sequence of operations of the quantum network protocol includes one or more classical communication operations (40ce), wherein a classical communication operation includes transmitting classical information from a first node of the quantum network to a second node of the quantum network. Further, according to (b), the sequence of operations of the quantum network protocol includes one or more quantum communication operations (32ab, 52df), wherein a quantum communication operation includes transmitting a quantum information carrier from a first node of the quantum network to a second node of the quantum network. Further, according to (c), a first local quantum system disposed at a first node of the quantum network includes a first component quantum system, a second local quantum system disposed at a second node of the quantum network includes a second component quantum system, wherein the first component quantum system and the second component quantum system form part of a joint quantum state (14cde, 34de) of K component quantum systems, wherein K is at least two. The method includes, in response to the receiving, encoding local quantum systems of the quantum network into at least a subset of quantum constituents (70) of a quantum computer (700), wherein each of the local quantum systems is disposed at a respective node of the quantum network during at least a portion of the quantum network protocol, wherein each of the local quantum systems is encoded into at least one quantum constituent. The method includes performing a simulation (950) of the quantum network protocol using the quantum computer, wherein performing the simulation of the quantum network protocol includes evolving at least some quantum constituents of the quantum computer from a first quantum state to a second quantum state to simulate the sequence of operations of the quantum network protocol.

The application discloses a bit data transmission scheduling method based on 6G space-ground integrated quantum network, a storage medium and equipment, and comprises the following steps: constructing a 6G space-ground integrated quantum communication network; searching for nodes meeting network scheduling task requirements in the quantum communication network, constructing a candidate node set, and screening out a determined best emission node; sending a quantum state to a receiving end through a quantum key distribution protocol at the best emission node, calculating a quantum bit error rate, selecting a candidate relay node from the candidate node set with the minimum quantum bit error rate as the target, and forming a quantum transmission channel; and the quantum transmission channel prepares a quantum key by using an entangled state, generates a random matrix density, generates a ciphertext through the random matrix density, and transmits the ciphertext to the receiving end. The application can reasonably schedule network resources, ensure data security through quantum communication, and the like.

The invention provides a quantum network security test system and method, and belongs to the technical field of quantum communication. Wherein the physical hardware layer provides a quantum physical communication scene; the virtualization layer provides a quantum simulation communication scene and a quantum network attack; a user performs resource scheduling and parameter configuration on the quantum physical / simulation communication scene through a graphic interaction interface provided by the management platform, and issues a test task to the control management layer; and the control management layer adjusts the quantum physics / simulation communication scene based on the received resource scheduling instruction and the parameter configuration instruction, and loads a preset test script based on the received test task to control the virtualization layer or the physical hardware layer to execute the test task and monitor the response behavior in real time. According to the invention, the quantum network test environment is enriched, and the quantum network security evaluation capability and the quantum network attack simulation capability are improved.

A system for communicating information using quantum packets includes a memory configured to store data for transmission and a processor operably coupled to the memory. The processor divides the data for transmission into a first number of blocks. Each block is then encoded into a second number of quantum packets encoded as a plurality of quantum bits. Each of the second number of quantum packets includes at least one of the of the blocks and a mapping. The quantum packets are then transmitted through a quantum network to a second system for reconstruction. The second system utilizes the mapping included in each quantum packets to reassemble the data.

This application discloses an incremental training method, server, and object detection system for an object detection model. The method includes: training an original OVD visual backbone network, an OVD predefined detection subnetwork, and a language model using a large image description dataset to obtain frozen first network parameters of the OVD visual backbone network; training the original OVD visual backbone network and the incremental subnetwork based on a pre-trained dataset to obtain an updated OVD visual backbone network and a trained incremental subnetwork, using the parameters of the trained incremental subnetwork as second network parameters; loading the frozen first network parameters of the original OVD visual backbone network and the second network parameters of the incremental subnetwork, and fine-tuning the incremental subnetwork using gradient backpropagation based on user incremental data to obtain third network parameters of the incremental subnetwork; and generating a fusion network of the OVD predefined detection subnetwork and the incremental subnetwork corresponding to the third network parameters as an object detection model.

A method for performing a key exchange using a quantum key distribution protocol between a first device (D1), a second device (D2), and an intermediary device (ID), wherein: ID receives first symbol set (SS1) over first quantum channel (QC1) transmitted from D1 and sends first receiving basis information (RBI1) to D1 which withholds from ID first transmitting basis information (TBI1); ID transmits second symbol set (SS2) over second quantum channel (QC2) and second transmitting basis information (TBI2) to D2 which withholds from ID second receiving basis information (RBI2); ID generates first (IS1) and second intermediate symbol (IS2) sets based on valid SS1 and SS2; wherein ID generates third intermediate symbol (IS3) set by combining IS1 and IS2 and sends IS3 set to D1 and / or D2; wherein D1 and D2 exchange TBI1 and RBI2 and / or RBI1 and TBI2 to determine a final shared key based on SS1, SS2, and IS3 sets.

The nested network includes a plurality of nodes, each including a high-level and a low-level quantum system. The intra-node optical network can be configured to interconnect the quantum systems of each of the nodes. The inter-node optical network can be configured to interconnect the high-level quantum systems of the plurality of nodes. The high-level quantum system can be selectively connected to the intra-node optical network or the inter-node optical network. Each quantum system can include one or more broker qubits and one or more client qubits. Entanglement of quantum systems in different nodes can be performed by attempting to entangle the quantum states of pairs of high-level quantum systems in parallel, and upon successful entanglement of one pair, transfer the entanglement to the low-level quantum systems of each node.

The disclosure includes a multiplexed telecommunication-band quantum network that utilizes atomic arrays in optical cavities. An example quantum networking system includes at least one quantum repeater node. The quantum repeater node includes an array of neutral atoms disposed in an optical cavity and a fiber-optic switch (FOS). The FOS is optically coupled to the optical cavity. The quantum repeater node also includes at least one beamsplitter. The at least one beamsplitter is optically coupled to the FOS.

The invention relates to information security, and discloses a message transmission method and device, a storage medium and a program product. The method comprises the following steps: determining an original message to be transmitted and a QOT system participating in transmission; performing post quantum cryptography authentication and key exchange operation with the QOT system through a pre-established PQC SSL channel to obtain a shared key between the user side and the QOT system; according to the method, the original message is packaged by using the shared key, and then the packaged original message is transmitted to the QOT system through the PQC SSL channel, so that the QOT system forwards the original message through the quantum network, and the original message is ensured to obtain security protection through an anti-quantum encryption means in the transmission process.

The invention relates to the technical field of quantum communication, in particular to a cross-domain user login system based on a quantum key distribution network, which comprises a field extraction module, a security domain analysis module, a quantum state negotiation module, a quantum encryption encapsulation module, a quantum decryption verification module and a security tunnel establishment module, the field extraction module extracts a user identity identifier and an anti-replay random number from the login request; the security domain analysis module analyzes the identifier to obtain a security domain and a quantum network node; the quantum state negotiation module generates session quantum key pairs based on node negotiation; the quantum encryption packaging module encrypts the random number and the voucher by using a user side key to obtain a quantum encryption login voucher; the quantum decryption verification module uses the server side secret key to decrypt and verify, and outputs an authentication result; the secure tunnel establishment module derives a key according to the result, and establishes a cross-domain secure communication link; according to the invention, the security and authentication efficiency of cross-domain user login can be improved.

The invention relates to the technical field of cryptology, and belongs to a CPA security post-quantum network communication method based on a TLCP protocol, a CPA security Kyber key exchange mechanism is constructed, the CPA security Kyber key exchange mechanism is seamlessly embedded into a TLCP protocol framework, and collaborative improvement of security, high efficiency and compatibility is achieved. A Kyber core algorithm is constructed based on an anti-quantum-attack LWE problem, a CPA security model of the Kyber core algorithm effectively resists quantum computing threats, and the requirements of satellite communication and other high-security scenes are met; in the aspect of high efficiency, a ciphertext verification step of Fujissaki-Okamoto (FO) conversion is skipped, so that the modular computation amount is remarkably reduced, and the key negotiation speed is increased; in the aspect of compatibility, a post-quantum key negotiation mechanism and a TLCP protocol can be seamlessly fused, other processes of the protocol can be compatible, and the adaptability and autonomous controllability of the system in a password standard system are improved.

This invention discloses a dual-field quantum key distribution system, including a Charlie end, an Alice end, and a Bob end; it also discloses a dual-field quantum key distribution method based on the aforementioned dual-field quantum key distribution system. This invention discloses a dual-field quantum key distribution system and method that interferes with the unencoded signal light transmitted back from the Alice and Bob ends at the Charlie end, and feeds back the phase drift based on the interference result to compensate for the phase drift of the encoded signal light during transmission in the optical fiber, achieving phase stability. This allows it to adapt to the operating environment of drastic phase changes in long-distance transmission, improving the stability and efficiency of quantum networks and transmission links.

The invention discloses a quantum key distribution network dynamic optimization method and system, a terminal and a storage medium. The method comprises the following steps: obtaining quantum channel state information in a quantum network; constructing a graph neural network dynamic model, and inputting the quantum channel state information into the graph neural network dynamic model to obtain link selection probabilities corresponding to a plurality of links; determining a key injection instruction according to the plurality of link selection probabilities; and generating an execution result according to the key injection instruction. According to the method, real-time optimization under channel jitter can be realized, and the key distribution efficiency is improved, so that the key rate can be improved, and the system efficiency is improved.

The application discloses a quantum network relay node fault positioning method, device and system, comprising obtaining relay hash values uploaded by each relay node, wherein the relay node comprises an initial node, an intermediate node and a to-be-tested node, the relay hash values uploaded by the intermediate node and the to-be-tested node are homomorphic hash values of XOR values of two adjacent relay keys, and the relay hash value uploaded by the initial node is a homomorphic hash value of an XOR value of a relay key and a session key between the initial node and a next hop; obtaining a session key ciphertext hash value uploaded by the to-be-tested node, wherein the session key ciphertext is an XOR value of a relay key and a session key between the to-be-tested node and a next hop; performing homomorphic algorithm verification based on the relay hash values uploaded by each relay node and the session key ciphertext hash value uploaded by the to-be-tested node, and positioning a faulty relay node; and the application can solve the problem that a specific faulty relay node cannot be positioned when quantum relay is unsuccessful.

The invention discloses a quantum key relay method and device, electronic equipment and a readable storage medium, and belongs to the field of quantum communication networks. Comprising the following steps: acquiring a plurality of application tasks, and determining a task queue of the application tasks needing to be subjected to key relaying from the plurality of application tasks; obtaining network information of a quantum network, and determining a quantum key relay path of a target application task based on the network information; and if the determination is successful, sending a key relay instruction to each node in the quantum key relay path, so that a source node in each node generates a shared key and sends the shared key to a destination node through an intermediate node, and sending a key identifier of the shared key to an application program corresponding to the target application task, and the application program carries out encrypted communication based on the key identifier. The key distribution method and device solve the core problems of low key distribution efficiency and resource waste in a traditional scheme.

In an example, the present invention provides a quantum repeater system and its application to quantum network. The quantum repeater system includes a nano-fiber based quantum computer device.

The application discloses a financial-grade database multidimensional security management and control system and method, relates to the technical field of financial data security management and control, and deploys a quantum encryption network and a backup key pool; initializes a data hierarchical management mechanism and a key management hub; transforms a database engine and builds a trusted audit hub, and deploys a security agent on a database node. Through the cooperation of the quantum encryption network and the post-quantum backup key pool, the high security of quantum encryption is utilized to resist traditional and quantum computing threats, and the encryption service is ensured not to be interrupted when the quantum network is abnormal, thereby meeting the continuity requirement of financial transactions; fine-grained data grading is combined with a differentiated security strategy, encryption algorithms, access permissions and retention periods are configured for high-sensitive, medium-sensitive and low-sensitive data respectively, precise protection is realized, and operation efficiency is taken into account; and a multi-role key cooperation mechanism avoids single-point key leakage, and the original key is destroyed after the key is generated, so that the key security is further improved.

The utility model discloses a quantum encryption authentication fusion system, which comprises a storage server and a plurality of communication parties, the communication party comprises a user side, a processing module, a quantum random number generator, a quantum key distribution module, a plaintext encryption module and a quantum key encryption module. The utility model discloses a quantum encryption authentication fusion system, which is characterized in that a quantum key distribution module generates a quantum key according to a true random number generated by a quantum random number generator, then a plaintext encryption module encrypts a plaintext by using the quantum key, and the quantum key encryption module encrypts the quantum key, so that the quantum key is encrypted and authenticated. The method can be prevented from being decoded by a high-speed computer, effectively improves the safety of information, and is widely applied to quantum network and natural person (or digital person) user authentication and information encryption.

The utility model discloses a quantum whiteboard system, which comprises a quantum whiteboard user side, a quantum safety service station, a quantum key management module, quantum key distribution equipment and a quantum safety service terminal, the quantum key distribution equipment is used for performing quantum key charging on the quantum whiteboard user side; the quantum security service station is bidirectionally connected with the quantum whiteboard user side, the quantum key management module and the quantum security service terminal, and the quantum key management module is bidirectionally connected with the quantum key distribution device. The utility model discloses a quantum whiteboard system, which realizes quantum secret communication among a quantum whiteboard client, a quantum security service station and a quantum security service terminal through a quantum key generated by quantum key distribution equipment, improves the security of data transmission, and solves the problem that a pseudo-random number serving as an encryption key is not safe enough. The important body of the quantum whiteboard is widely applied to the fields of quantum networks and quantum password commercial passwords.

The embodiment of the invention relates to the field of quantum network communication security, and discloses a quantum network scheduling method and device, electronic equipment and a storage medium. According to the method, resource scheduling information is collected through resource and state interfaces provided by a quantum network layer; dynamically opening the service according to the resource scheduling information, and adjusting a key link according to the opening information of the service; scheduling a relay route according to the service opening information and the key link adjustment condition, and generating a quantum key transmission path and change information of each route; and generating a downlink operation instruction interface according to the change information, and issuing the downlink operation instruction interface to the quantum communication network. The intelligent scheduling and management of the quantum secret communication network are realized, the system operation efficiency is greatly improved, and the user experience is improved.

The invention discloses a partition-based airborne quantum network efficient entanglement resource distribution method, apparatus and device. The method comprises the steps of determining a long-distance multi-hop entanglement path of an airborne communication platform based on an improved shortest path algorithm; according to a long-distance multi-hop entanglement path, relay nodes between a source node and a destination node are divided into a plurality of first-class regions, each first-class region comprises a preset number of intermediate nodes, if the number of remaining nodes after path division is less than the preset number, the first-class regions are independently divided into a second-class region so as to establish multi-hop entanglement connection, sequential entanglement swap operation is adopted between adjacent sub-regions of a long-distance multi-hop entanglement path, and the sequential entanglement swap means that after entanglement swap is completed in a current sub-region, entanglement swap starts to be executed in a next sub-region so as to establish an entanglement link between a source node and a destination node. The invention provides an entanglement distribution scheme applicable to an airborne communication platform so as to improve network performance.