CN113472532B - Mobile remote quantum communication method and device based on quantum storage - Google Patents
Mobile remote quantum communication method and device based on quantum storage Download PDFInfo
- Publication number
- CN113472532B CN113472532B CN202110724223.2A CN202110724223A CN113472532B CN 113472532 B CN113472532 B CN 113472532B CN 202110724223 A CN202110724223 A CN 202110724223A CN 113472532 B CN113472532 B CN 113472532B
- Authority
- CN
- China
- Prior art keywords
- quantum
- storage system
- mobile
- receiver
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003860 storage Methods 0.000 title claims abstract description 215
- 238000004891 communication Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 13
- 239000002096 quantum dot Substances 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000006855 networking Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000009295 sperm incapacitation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
- H04L9/0855—Quantum cryptography involving additional nodes, e.g. quantum relays, repeaters, intermediate nodes or remote nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/70—Photonic quantum communication
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses a mobile remote quantum communication method based on quantum storage, which replaces channel loss cost with time delay cost to realize great improvement of equivalent communication distance: the point-to-point quantum communication system is used for transmitting the safety critical information to the mobile quantum storage system, the mobile quantum storage system has higher moving speed, the mobile quantum storage system reaches the receiver in the quantum storage time and transmits the safety critical information stored in a quantum state form to the receiver through the point-to-point quantum communication system, and at the moment, the two communication parties of space distance exchange complete one-way communication with one-hop forwarding and time delay without one-time information falling. The application provides a one-hop forwarding type quantum communication working mode, which provides a feasible means for unidirectional quantum communication which can tolerate hour-level transmission delay but strongly requires that keys and information do not fall to the ground, and greatly improves the networking flexibility and engineering practicability of a quantum communication network.
Description
Technical Field
The application belongs to the quantum communication discipline, in particular to a method for realizing ultra-long distance non-real-time quantum communication by taking a high-speed maneuvering platform carrying a quantum storage system as a relay, having a certain time delay tolerance and compensating optical channel loss through reading and writing operation and high-speed movement of quantum storage, and particularly relates to a maneuvering remote quantum communication method, a maneuvering remote quantum communication system and a storage medium based on quantum storage.
Background
Quantum communication is a subversion communication technology for realizing information security interaction by establishing a quantum state synchronous sharing mechanism for a far-end user, and is mainly based on the Hessenberg measurement inaccuracy principle, the quantum inseparable principle, the quantum unclonable principle and the like, and has unconditional security with mathematical evidence, namely, any eavesdropper cannot eavesdrop, interpret and forge communication contents under the condition of not causing the awareness of both communication parties. The most mature at the present stage is the quantum secret communication technology, the quantum key distribution is realized through quantum state synchronous sharing, and the symmetric encryption communication is realized by carrying out one-time one-secret exclusive OR operation with plaintext information. In addition, the quantum state can be used as an information carrier for quantum direct communication, and effective transmission of the information which is important to safety can be realized without encryption and decryption.
Quantum communication rates and distances are highly limited by channel loss. Quantum communication signals are not reproducible and therefore are not compatible with the repeater amplifiers commonly used for classical communication. When the channel loss exceeds the threshold, the quantum bit error rate will be above the theoretical safety limit, destroying the safety properties of quantum communications. The trusted relay is a common method for increasing the communication distance, namely a plurality of quantum communication links are cascaded by using the trusted relay and exclusive OR operation is carried out on the secret key or the information successively, at the moment, the secret key and the information have a landing process, and the quantum communication links using the plurality of trusted relays have huge potential safety hazards. On the other hand, quantum relay, while capable of avoiding the process of landing keys and information, is not yet mature in technology, but is insufficient to support establishment of multi-path cascaded ultra-long-range quantum communication links.
Disclosure of Invention
Based on the problems of the prior art, the application aims to solve the technical problems: how to realize quantum communication distance extension by using a mobile quantum storage system.
Aiming at the defects existing in the prior art, the application aims to provide a mobile remote quantum communication method based on quantum storage, wherein a sender exchanges information with a mobile quantum storage system once, the sender sends safety critical information to be sent to the mobile quantum storage system and stores the safety critical information in a quantum state form, a mobile relay moves at a high speed to a receiver, the safety critical information is exported from the mobile quantum storage system within the quantum state retention time, and the mobile quantum storage system exchanges information with the receiver once to finish the remote delivery of the safety critical information; furthermore, the mobile quantum storage system will empty all information under external interference.
In order to achieve the above effects, the mobile remote quantum communication method based on quantum storage provided by the application comprises a sender, a mobile quantum storage system and a receiver, wherein the sender and the mobile quantum storage system exchange information once, the sender compiles safety critical information into a quantum state and writes the information into the mobile quantum storage system, after the sender finishes uploading the information, the sender informs a motion control unit of the mobile quantum storage system of the geographical position of the receiver and performs shortest path planning, the mobile quantum storage system moves to the receiver with the safety critical information compiled into the quantum state, the mobile quantum storage system arrives at the receiver within the quantum state holding time, any problem in the moving process of the mobile quantum storage system is regarded as external interference, the mobile quantum storage system nearby the receiver exchanges information once with the receiver, and the receiver reads the quantum state in the mobile quantum storage system and compiles the safety critical information, completes time-delayed mobile remote unidirectional quantum communication and waits for the next task.
Preferably, the implementation manner of the quantum storage system can be light quantum storage, color center quantum storage or cold atom quantum storage.
Preferably, the quantum storage system is emptied when the external disturbance is considered.
Preferably, the receiving party automatically empties the quantum states in the quantum storage system when the receiving party reads the quantum states in the mobile quantum storage system and compiles the quantum states into safety critical information.
Preferably, the method comprises the steps of:
s101, information loading, namely, a sender exchanges information with a mobile quantum storage system through a point-to-point quantum communication system, and safety critical information is stored in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver under the condition of not being interfered by the outside within the quantum state holding time;
and S103, information downloading, namely, the receiver exchanges information with the mobile quantum storage system through the point-to-point quantum communication system, reads the quantum state as safety-critical information, and completes mobile remote quantum communication with time delay.
Preferably, in the method, a direct connection channel exists between the sender A and the receiver B, and the loss of the direct connection channel is L 1 The quantum communication between A and B can not be completed through a direct connection channel, and a one-hop forwarding quantum communication link for unidirectional transmission between A and B can be established through a motor-driven remote mode, which comprises the following steps:
s201, uploading information: sender A and mobile quantum storage system pass throughThe point-to-point quantum communication system performs one-time information interaction, the sender A compiles the security critical information into a quantum state and stores the quantum state in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L 2 The quantum bit error rate caused by the loss cannot exceed the safety threshold value;
s202, information movement: after all the information is sent by the sender, uploading the address of the receiver to a motion control system of the mobile quantum storage system, wherein the mobile quantum storage system retains safety critical information in a quantum state form; the mobile quantum storage system moves to the sender at a high speed and catches up in the quantum state preservation time; if yaw is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the mobile quantum storage system reaches the receiver and exchanges information with the receiver once, the transmitter transmits a quantum communication signal to read the quantum state stored in the quantum storage system and analyze the quantum state into safety-critical information, and the channel loss between the receiver and the mobile quantum storage system is L 3 The quantum bit error rate caused by this loss cannot exceed the safety threshold.
Preferably, for a particular length of critical information, L 2 And L 3 The smaller the motorized quantum storage system, the shorter the time it takes to write and read information, but at the same time the motorized quantum storage system moves with increasing time and possibly exceeding the quantum state retention time.
Preferably, the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, wherein the motion control system is responsible for receiving the position coordinates of a receiver provided by a sender and driving the mobile quantum storage system to move at a high speed according to a set track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring the fidelity and the nondestructive of the quantum states in the moving process, supporting the reading of quantum state information by the receiver and clearing the quantum states when interference occurs.
A system for realizing the mobile remote quantum communication method based on quantum storage, which comprises a sender, a mobile quantum storage system, a receiver, a point-to-point quantum communication system, a motion control system and a quantum storage system,
the method comprises the steps that information exchange is carried out once between a sender and a mobile quantum storage system, the sender compiles safety critical information into a quantum state and writes the quantum state into the mobile quantum storage system, after the sender finishes uploading information, the sender informs a motion control unit of the mobile quantum storage system of the geographical position of a receiver and carries out shortest path planning, the mobile quantum storage system carries the safety critical information compiled into the quantum state and moves to the receiver, the mobile quantum storage system arrives at the receiver within the quantum state holding time, any problem in the moving process of the mobile quantum storage system is regarded as external interference, the mobile quantum storage system arriving nearby the receiver exchanges information once with the receiver, the receiver reads the quantum state in the mobile quantum storage system and compiles the safety critical information, and the receiver finishes time-delayed and mobile remote one-way quantum communication and waits for the next task;
the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, wherein the motion control system is responsible for receiving the position coordinates of a receiver provided by a sender and driving the mobile quantum storage system to move at a high speed according to a set track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring the fidelity and the non-loss of the quantum states in the moving process, supporting the reading of quantum state information by the receiver and clearing the quantum states when interference occurs.
A computer readable storage medium having stored thereon a computer program which when executed by a processor implements the above method.
A computer program product comprising computer programs/instructions which when executed by a processor implement the steps of the above method.
The application provides a one-hop forwarding type quantum communication working mode, which provides a feasible means for unidirectional quantum communication which can tolerate hour-level transmission delay but strongly requires that keys and information do not fall to the ground, and greatly improves the networking flexibility and engineering practicability of a quantum communication network.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of a mobile remote quantum communication method based on quantum storage according to the application;
fig. 2 shows a basic schematic diagram of mobile remote quantum communication based on quantum storage according to the application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely configured to illustrate the application and are not configured to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The application provides an embodiment of a mobile remote quantum communication method based on quantum storage, which comprises a sender, a mobile quantum storage system and a receiver, wherein the sender and the mobile quantum storage system exchange information once, the sender compiles safety critical information into a quantum state and writes the information into the mobile quantum storage system, after the sender finishes uploading the information, the sender informs a motion control unit of the mobile quantum storage system of the geographical position of the receiver and performs shortest path planning, the mobile quantum storage system moves to the receiver with the safety critical information compiled into the quantum state, the mobile quantum storage system arrives at the receiver within the quantum state holding time, any problem in the moving process of the mobile quantum storage system is regarded as external interference, the mobile quantum storage system nearby the receiver exchanges information once with the receiver, and the receiver reads the quantum state in the mobile quantum storage system and compiles the safety critical information, completes time-delayed mobile remote one-way quantum communication and waits for the next task.
In some embodiments, the implementation of the quantum storage system may be optical quantum storage, color center quantum storage, or cold atom quantum storage.
In some embodiments, the quantum storage system will be emptied when viewed as an external disturbance.
In some embodiments, the quantum states within the quantum storage system are automatically emptied when the recipient reads the quantum states in the motorized quantum storage system and compiles into security critical information.
The application provides an embodiment of a mobile remote quantum communication method based on quantum storage, which comprises the following steps:
s101, information loading, namely, a sender exchanges information with a mobile quantum storage system through a point-to-point quantum communication system, and safety critical information is stored in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver under the condition of not being interfered by the outside within the quantum state holding time;
and S103, information downloading, namely, the receiver exchanges information with the mobile quantum storage system through the point-to-point quantum communication system, reads the quantum state as safety-critical information, and completes mobile remote quantum communication with time delay.
The application provides an embodiment of a mobile remote quantum communication method based on quantum storage, which comprises a sender A, a mobile quantum storage system and a receiver B, wherein a direct connection channel exists between the sender A and the receiver B, and the loss of the direct connection channel is L 1 The quantum communication between A and B can not be completed through a direct connection channel, and a one-hop forwarding quantum communication link for unidirectional transmission between A and B can be established through a motor-driven remote mode, which comprises the following steps:
s201, uploading information: the sender A performs one-time information interaction with the mobile quantum storage system through the point-to-point quantum communication system, the sender A compiles the security critical information into a quantum state and stores the quantum state in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L 2 The quantum bit error rate caused by the loss cannot exceed the safety threshold value;
s202, information movement: after all the information is sent by the sender, uploading the address of the receiver to a motion control system of the mobile quantum storage system, wherein the mobile quantum storage system retains safety critical information in a quantum state form; the mobile quantum storage system moves to the sender at a high speed and catches up in the quantum state preservation time; if yaw is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the mobile quantum storage system reaches the receiver and exchanges information with the receiver once, the transmitter transmits a quantum communication signal to read the quantum state stored in the quantum storage system and analyze the quantum state into safety-critical information, and the channel loss between the receiver and the mobile quantum storage system is L 3 The quantum bit error rate caused by this loss cannot exceed the safety threshold.
In some embodiments, for a particular length of critical information, L 2 And L 3 The smaller the motorized quantum storage system, the shorter the time it takes to write and read information, but at the same time the motorized quantum storage system moves with increasing timeAnd may exceed the quantum state retention time.
In some embodiments, the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, wherein the motion control system is responsible for receiving the receiver position coordinates provided by a sender and driving the mobile quantum storage system to move at a high speed according to a set track, and the quantum storage system is responsible for storing quantum signals compiled by the sender as quantum states, ensuring the fidelity and the damage of the quantum states in the moving process, supporting the reading of quantum state information by the receiver and clearing the quantum states when interference occurs.
The application provides an embodiment of a mobile remote quantum communication method based on quantum storage, which replaces channel loss cost with time delay cost to realize great improvement of equivalent communication distance: the point-to-point quantum communication system is used for transmitting the safety critical information to the mobile quantum storage system, the mobile quantum storage system has higher moving speed, the mobile quantum storage system reaches the receiver in the quantum storage time and transmits the safety critical information stored in a quantum state form to the receiver through the point-to-point quantum communication system, and at the moment, the two communication parties of space distance exchange complete one-way communication with one-hop forwarding and time delay without one-time information falling.
In some embodiments, two communication parties of the point-to-point quantum communication system are interconnected by independent quantum channels, the two communication parties share information to meet unclonable and unclonable principles, the two communication parties delete error information and acquire a synchronous shared quantum true random number sequence through means such as negotiation interaction, information post-processing and the like, the working modes of the quantum communication system comprise but are not limited to two types, firstly, encryption communication is realized through quantum key distribution and one-time encryption and decryption operation, and secondly, quantum direct communication is directly carried out by taking quanta as an information carrier. Communication protocols include, but are not limited to, BB84 protocol, E91 protocol, BBM92 protocol, high-dimensional quantum key distribution protocol, time-energy entanglement protocol, TF protocol, continuous variable quantum key distribution protocol, quantum direct communication protocol, etc.; information carriers include, but are not limited to, optical quanta, spintrons, etc., quantum channels include, but are not limited to, optical fibers, cables, free space, etc., and encoding degrees of freedom include, but are not limited to, polarization, time bits, phase, frequency, mode field, spin direction, etc.
In some embodiments, the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, wherein the motion control system is responsible for receiving the receiver position coordinates provided by a sender and driving the mobile quantum storage system to move at a high speed according to a set track, and the quantum storage system is responsible for storing quantum signals compiled by the sender as quantum states, ensuring the fidelity and the damage of the quantum states in the moving process, supporting the reading of quantum state information by the receiver and clearing the quantum states when interference occurs. The mobile quantum storage system needs to establish a reliable and stable quantum communication link with a sender and a receiver and perform effective quantum information interaction, and a carrying platform comprises but is not limited to a secret carrying person, a high-speed rail, an automobile, an unmanned aerial vehicle satellite and the like, and storage modes comprise but are not limited to optical storage, cold atom storage, color center defect storage and the like, and the motion control system, the operation mode, the information transceiving protocol, the light and substance action mode and the like of the mobile quantum storage system are not limited in detail.
An embodiment of the mobile remote quantum communication rationale based on quantum storage is illustrated in fig. 2. The basic principle of mobile remote quantum communication. A direct connection channel exists between the sender A and the receiver B, and the loss of the direct connection channel is L 1 Quantum communication (namely, the quantum bit error rate exceeds the safety threshold) cannot be completed between A and B through a direct connection channel, and a one-hop forwarding quantum communication link for unidirectional transmission between A and B can be established in a motorized remote mode at the moment, and the method specifically comprises the following steps:
(1) Uploading information: the sender A performs one-time information interaction with the mobile quantum storage system through the point-to-point quantum communication system, the sender A compiles the security critical information into a quantum state and stores the quantum state in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L 2 The quantum bit error rate caused by this loss cannot exceed the safety threshold.
(2) And (3) information movement: after all the information is sent by the sender, uploading the address of the receiver to a motion control system of the mobile quantum storage system, wherein the mobile quantum storage system retains safety critical information in a quantum state form; the mobile quantum storage system moves to the sender at a high speed and catches up in the quantum state preservation time; if yaw is caused by interference, the quantum storage system is emptied and returned to the sender;
(3) And (3) information downloading: the mobile quantum storage system reaches the receiver and exchanges information with the receiver once, the transmitter transmits a quantum communication signal to read the quantum state stored in the quantum storage system and analyze the quantum state into safety-critical information, and the channel loss between the receiver and the mobile quantum storage system is L 3 The quantum bit error rate caused by this loss cannot exceed the safety threshold.
For critical information of a specific length, L 2 And L 3 The smaller the motorized quantum storage system, the shorter the time it takes to write and read information, but at the same time the motorized quantum storage system moves with increasing time and possibly exceeding the quantum state retention time. Therefore, the motion trajectories of motorized quantum storage systems need to be optimized so that information upload, move, and download times are minimized and information move times do not exceed quantum state retention times.
The present application also provides an embodiment of a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described method.
The application also provides an embodiment of a computer program which, when executed by a processor, implements the above method.
Compared with the prior art, the application has the following advantages:
firstly, the application provides a compensation solution for remote security critical information transmission, namely, the problem of quantum communication incapacitation caused by remote channel loss is compensated by high-speed movement of a mobile quantum storage system;
secondly, the mobile quantum storage system used by the application can solve the problem of 'plaintext information landing' faced by a long-distance quantum communication link based on cascade trusted relay, and realize the whole process quantization of the communication link;
finally, the application provides a brand new quantum communication working mode, and according to the working mode of 'one-time reading type U disk', the networking flexibility and engineering practicability of the quantum communication network are greatly improved on the premise of tolerating time delay.
For convenience of description, the above devices are described as being functionally divided into various units, respectively. Of course, the functions of each element may be implemented in the same piece or pieces of software and/or hardware when implementing the present application.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. The mobile remote quantum communication method based on quantum storage comprises a sender, a mobile quantum storage system and a receiver, wherein information exchange is carried out between the sender and the mobile quantum storage system once, safety critical information is compiled into a quantum state by the sender and written into the mobile quantum storage system, after the sender finishes information uploading, a motion control unit of the mobile quantum storage system is informed of the geographical position of the receiver and carries out shortest path planning, the mobile quantum storage system moves to the receiver with the safety critical information compiled into the quantum state, the receiver is reached within the quantum state holding time, the mobile quantum storage system is emptied when external interference occurs in the moving process of the mobile quantum storage system, the mobile quantum storage system nearby the receiver exchanges information with the receiver once, the receiver reads the quantum state in the mobile quantum storage system and compiles the safety critical information, and the mobile remote one-way quantum communication with time delay and waiting for the next task is finished.
2. The quantum storage-based mobile remote quantum communication method according to claim 1, wherein the quantum storage system can be implemented as optical quantum storage, color center quantum storage or cold atom quantum storage.
3. The quantum storage-based mobile remote quantum communication method according to claim 1 or 2, wherein the quantum storage system is emptied when the external interference is considered.
4. The quantum storage-based mobile remote quantum communication method according to claim 1 or 2, wherein the quantum state in the quantum storage system is automatically emptied when the receiver reads the quantum state in the mobile quantum storage system and compiles the quantum state into security critical information.
5. The quantum storage-based mobile remote quantum communication method according to claim 1, characterized in that the method comprises the steps of:
s101, information loading, namely, a sender exchanges information with a mobile quantum storage system through a point-to-point quantum communication system, and safety critical information is stored in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver under the condition of not being interfered by the outside within the quantum state holding time;
and S103, information downloading, namely, the receiver exchanges information with the mobile quantum storage system through the point-to-point quantum communication system, reads the quantum state as safety-critical information, and completes mobile remote quantum communication with time delay.
6. The mobile remote quantum communication method based on quantum storage according to claim 1 or 5, wherein a direct connection channel exists between a sender a and a receiver B, and the loss of the direct connection channel is L 1 The quantum communication between A and B can not be completed through a direct connection channel, and a one-hop forwarding quantum communication link for unidirectional transmission between A and B can be established through a motor-driven remote mode, which comprises the following steps:
s201, uploading information: the sender A performs one-time information interaction with the mobile quantum storage system through the point-to-point quantum communication system, the sender A compiles the security critical information into a quantum state and stores the quantum state in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L 2 The quantum bit error rate caused by the loss cannot exceed the safety threshold value;
s202, information movement: after all the information is sent by the sender, uploading the address of the receiver to a motion control system of the mobile quantum storage system, wherein the mobile quantum storage system retains safety critical information in a quantum state form; the mobile quantum storage system moves to the receiver at a high speed and catches up in the quantum state preservation time; if yaw is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the mobile quantum storage system reaches the receiver and exchanges information with the receiver once, the receiver sends out a quantum communication signal to read the quantum state stored in the quantum storage system and analyze the quantum state into safety-related information, and the channel loss between the receiver and the mobile quantum storage system is L 3 The quantum bit error rate caused by this loss cannot exceed the safety threshold.
7. According to claimThe quantum storage-based mobile remote quantum communication method of claim 6, wherein for a specific length of critical information, L 2 And L 3 The smaller the motorized quantum storage system, the shorter the time it takes to write and read information, but at the same time the motorized quantum storage system moves with increasing time and possibly exceeding the quantum state retention time.
8. The mobile remote quantum communication method based on quantum storage according to one of claims 1 to 7, wherein the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, the motion control system is responsible for receiving the receiver position coordinates provided by a sender and driving the mobile quantum storage system to move at a high speed according to a given track, and the quantum storage system is responsible for storing the quantum signals compiled by the sender as quantum states, ensuring the fidelity and the damage of the quantum states in the moving process, supporting the reading of the quantum state information by the receiver and clearing the quantum states when interference occurs.
9. A system for realizing the quantum storage-based mobile remote quantum communication method according to claim 1-8, comprising a sender, a mobile quantum storage system, a receiver, a point-to-point quantum communication system, a motion control system and a quantum storage system,
the method comprises the steps that information exchange is carried out once between a sender and a mobile quantum storage system, the sender compiles safety critical information into a quantum state and writes the quantum state into the mobile quantum storage system, after the sender finishes uploading information, the sender informs a motion control unit of the mobile quantum storage system of the geographical position of a receiver and carries out shortest path planning, the mobile quantum storage system moves to the receiver with the safety critical information compiled into the quantum state, the mobile quantum storage system arrives at the receiver within the quantum state holding time, the mobile quantum storage system is emptied when external interference occurs in the moving process of the mobile quantum storage system, the mobile quantum storage system arriving nearby the receiver exchanges information once with the receiver, the receiver reads the quantum state in the mobile quantum storage system and compiles the safety critical information, and the receiver finishes time-delayed and mobile remote one-way quantum communication and waits for the next task;
the mobile quantum storage system comprises a physically independent motion control system and a quantum storage system, wherein the motion control system is responsible for receiving the position coordinates of a receiver provided by a sender and driving the mobile quantum storage system to move at a high speed according to a set track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring the fidelity and the non-loss of the quantum states in the moving process, supporting the reading of quantum state information by the receiver and clearing the quantum states when interference occurs.
10. A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the method of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724223.2A CN113472532B (en) | 2021-06-29 | 2021-06-29 | Mobile remote quantum communication method and device based on quantum storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724223.2A CN113472532B (en) | 2021-06-29 | 2021-06-29 | Mobile remote quantum communication method and device based on quantum storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113472532A CN113472532A (en) | 2021-10-01 |
| CN113472532B true CN113472532B (en) | 2023-11-17 |
Family
ID=77873647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110724223.2A Active CN113472532B (en) | 2021-06-29 | 2021-06-29 | Mobile remote quantum communication method and device based on quantum storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113472532B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140851A1 (en) * | 2018-12-30 | 2020-07-09 | 华南师范大学 | Quantum communication and quantum time-frequency transmission fusion network system and method |
| CN111510224A (en) * | 2020-03-20 | 2020-08-07 | 军事科学院系统工程研究院网络信息研究所 | Quantum communication method and system based on wavelength division multiplexing coding and key storage conversion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7983422B2 (en) * | 2003-07-25 | 2011-07-19 | Hewlett-Packard Development Company, L.P. | Quantum cryptography |
| US9946973B2 (en) * | 2012-06-18 | 2018-04-17 | The University Of Sydney | Long-time low-latency quantum memory by dynamical decoupling |
| WO2016145037A1 (en) * | 2015-03-09 | 2016-09-15 | University Of Houston System | Methods and apparatuses for authentication in quantum key distribution and/or quantum data communication |
-
2021
- 2021-06-29 CN CN202110724223.2A patent/CN113472532B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140851A1 (en) * | 2018-12-30 | 2020-07-09 | 华南师范大学 | Quantum communication and quantum time-frequency transmission fusion network system and method |
| CN111510224A (en) * | 2020-03-20 | 2020-08-07 | 军事科学院系统工程研究院网络信息研究所 | Quantum communication method and system based on wavelength division multiplexing coding and key storage conversion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113472532A (en) | 2021-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104137587B (en) | A kind of method and terminal device for sending, receiving user data | |
| Mahmood et al. | Machine type communications: key drivers and enablers towards the 6G era | |
| van Loock et al. | Extending quantum links: modules for fiber‐and memory‐based quantum repeaters | |
| US20230078794A1 (en) | System and method for network distribution of quantum entanglement | |
| KR102065958B1 (en) | Method and system for managing data transfer | |
| CN104380773A (en) | A virtual card download method, a terminal and intermediate equipment | |
| CN106657291A (en) | Data transmission method, system and electronic equipment | |
| CN113472532B (en) | Mobile remote quantum communication method and device based on quantum storage | |
| CN113472531B (en) | Motorized remote quantum communication method and system based on self-destructible trusted relay | |
| CN105988949B (en) | The method and system that terminal device, data interaction are handled | |
| CN114301826B (en) | Message transmission method and device | |
| CN104917560B (en) | Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method | |
| CN113472530B (en) | Low-loss quantum communication method with multi-star cooperation | |
| Torre et al. | Network-coded multigeneration protocols in heterogeneous cellular networks | |
| CN116781764A (en) | Long-connection task execution method and device and related equipment | |
| CN114629551B (en) | Electro-optical dual-carrier mutual-calibration underwater communication method | |
| US11106634B1 (en) | Systems and methods for randomized file segmentation and storage | |
| CN108768962A (en) | Data processing method and device and system | |
| CN103607277B (en) | The processing method of key updating, system and key management platform | |
| CN112260769B (en) | Acousto-optic double-carrier mutual-check underwater communication method | |
| CN116170080B (en) | Unmanned aerial vehicle-mounted function definable node quantum communication method | |
| US11349950B1 (en) | Remotely interacting with database | |
| Tsiory et al. | When Does Network Coding Benefit Store-Carry-and-Forwarding Networks in Practice? | |
| CN102763379A (en) | Relay device | |
| CN115776696A (en) | Data mapping transmission method and device, communication equipment and readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |