CN113472532A - Maneuvering zooming quantum communication method based on quantum storage - Google Patents
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Abstract
The invention discloses a quantum communication method based on quantum storage for maneuvering remote quantum communication, which replaces channel loss cost with time delay cost to realize great promotion of equivalent communication distance: the mobile quantum storage system has high moving speed, arrives at a receiver in quantum storage time and transmits the safety vital information stored in a quantum state form to the receiver through the point-to-point quantum communication system, and at the moment, two communication parties of space distance exchange complete one-way communication with one-hop forwarding and practical delay, wherein the one-way communication is that the information does not fall to the ground and the one-hop forwarding is carried out. The invention provides a skip-sending quantum communication working mode, provides a feasible means for unidirectional quantum communication which can tolerate small-magnitude transmission delay but strongly requires that keys and information do not fall to the ground, and greatly improves networking flexibility and engineering practicability of a quantum communication network.
Description
Technical Field
The invention belongs to the field of quantum communication, and particularly relates to a method for realizing ultra-long distance non-real-time quantum communication by using a high-speed mobile platform carrying a quantum storage system as a relay, having certain time delay tolerance and compensating optical channel loss through read-write operation and high-speed movement of quantum storage, in particular to a method, a system and a storage medium for mobile remote quantum communication based on quantum storage.
Background
Quantum communication is a subversive communication technology for realizing information security interaction by establishing a quantum state synchronization sharing mechanism for a remote user, is mainly based on a Heisenberg inaccuracy measuring principle, a quantum inseparable principle and the like, and has unconditional security of mathematical licenses, namely, any eavesdropper cannot eavesdrop, interpret and forge communication contents under the condition of not causing detection of both communication parties. The most mature at present is the quantum secret communication technology, quantum key distribution is realized through quantum state synchronous sharing, and symmetric encryption communication is realized by performing one-time pad XOR operation on plaintext information. In addition, quantum direct communication can be carried out by taking the quantum state as an information carrier, and effective transmission of safety-critical information can be realized without encryption and decryption.
Quantum communication rates and distances are highly limited by channel losses. Quantum communication signals are not reproducible and therefore not compatible with repeater amplifiers commonly used in classical communication. When the channel loss exceeds the threshold, the quantum bit error rate will be higher than the theoretical safety limit, destroying the safety property of quantum communication. The trusted relay is a common method for increasing the communication distance, namely, the trusted relay is used for cascading a plurality of quantum communication links and carrying out XOR operation on keys or information successively, at the moment, the keys 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, although quantum relay can avoid the landing process of keys and information, the technology is not mature yet and is not enough to support establishment of multi-path cascaded ultra-long distance quantum communication links.
Disclosure of Invention
Based on the problems of the prior art, the technical problems to be solved by the invention are as follows: how to realize quantum communication distance extension by utilizing a motor-driven quantum storage system.
Aiming at the defects in the prior art, the invention aims to provide a mobile zoom-out quantum communication method based on quantum storage, wherein a sender and a mobile quantum storage system exchange primary information, 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 to a receiver at a high speed, the safety critical information is exported from the mobile quantum storage system within quantum state retention time, and the mobile quantum storage system and the receiver exchange primary information to finish remote delivery of the safety critical information; furthermore, a mobile quantum storage system will empty all information under external disturbances.
In order to achieve the above effects, the mobile remote quantum communication method based on quantum storage provided by the invention comprises a sender, a mobile quantum storage system and a receiver, wherein the sender exchanges information with the mobile quantum storage system once, the sender compiles safety critical information into quantum states and writes the quantum states into the mobile quantum storage system, after the sender uploads the information, the geographical position of the receiver is informed to a motion control unit of the mobile quantum storage system and performs shortest path planning, the mobile quantum storage system carries the safety critical information compiled into quantum states to move to the receiver, the mobile quantum storage system arrives at the receiver within quantum state retention 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 states in the mobile quantum storage system and compiles the safety critical information, and completing the unidirectional quantum communication with time delay and maneuvering zooming out and waiting for the next task.
Preferably, the quantum memory system can be implemented by optical quantum memory, color center quantum memory or cold atom quantum memory.
Preferably, the quantum memory system is emptied when an external disturbance is considered as described above.
Preferably, the quantum states in the quantum storage system are automatically cleared when the receiver reads the quantum states in the mobile quantum storage system and compiles into the security-critical information.
Preferably, the above method comprises the steps of:
s101, information loading, namely, a sender exchanges information with the mobile quantum storage system through a point-to-point quantum communication system and stores safety critical information in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver without being interfered by the outside in the quantum state retention time;
and S103, downloading information, namely, exchanging information between the receiver and the mobile quantum storage system through the point-to-point quantum communication system, reading the quantum state as safety critical information, and completing the mobile zoom-out quantum communication with time delay.
Preferably, a direct connection channel exists between the sender a and the receiver B in the method, and the loss of the direct connection channel is L1The quantum communication can not be completed between the A and the B through a direct connection channel, and a one-hop quantum communication link for establishing one-way transmission between the A and the B through a mobile zooming-out mode specifically comprises the following steps:
s201, information uploading: the sender A and the mobile quantum storage system carry out one-time information interaction through the point-to-point quantum communication system, the sender A compiles safety critical information into quantum states and stores the quantum states in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L2The error rate of the qubits caused by this loss cannot exceed the safety threshold;
s202, information movement: after the sender sends all the information, the address of the receiver is uploaded to a motion control system of the mobile quantum storage system, and at the moment, security critical information existing in a quantum state form is reserved in the mobile quantum storage system; the maneuvering quantum storage system moves to the sender at a high speed and arrives within the quantum state storage time; if the navigation is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the maneuvering quantum storage system reaches a receiver and exchanges information with the receiver once, the sender sends out a quantum communication signal to read a quantum state stored in the quantum storage system and analyzes the quantum state into safety related information, and the channel loss between the receiver and the maneuvering quantum storage system is L3The qubit error rate due to this loss cannot exceed the safety threshold.
Preferably, L is the vital information of a specific length2And L3The smaller the time it takes for the motorized quantum storage system to write and read information, but at the same time the motorized quantum storage system moves increases and may exceed the quantum state retention time.
Preferably, 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 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 that the fidelity of the quantum states is not damaged in the moving process, supporting the receiver to read quantum state information and emptying the quantum states when interference occurs.
A system for realizing the quantum storage-based maneuvering remote quantum communication method comprises a sender, a maneuvering quantum storage system, a receiver, a point-to-point quantum communication system, a motion control system and a quantum storage system,
the sender exchanges information with the mobile quantum storage system once, the sender compiles the safety-critical information into quantum states and writes the quantum states into the mobile quantum storage system, after the sender finishes uploading the information, informing the geographical position of the receiver to the motion control unit of the mobile quantum storage system and carrying out shortest path planning, wherein the mobile quantum storage system carries the safety critical confidence compiled into quantum state to move to the receiver, when the mobile quantum storage system reaches a receiver within the quantum state retention time, any problem occurs in the moving process of the mobile quantum storage system, namely the problem is regarded as external interference, the mobile quantum storage system near the receiver exchanges information with the receiver once, the receiver reads the quantum state in the mobile quantum storage system and compiles the quantum state into safety critical information, one-way quantum communication with time delay and mobile zooming out is completed, and the next task is waited;
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 position coordinates of a receiving party provided by a sending party 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 sending party into quantum states, ensuring that the quantum states are not damaged in fidelity in the moving process, supporting the receiving party to read quantum state information and emptying the quantum states when interference occurs.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method.
A computer program product comprising computer programs/instructions which, when executed by a processor, implement the steps of the above-described method.
The invention provides a skip-sending quantum communication working mode, provides a feasible means for unidirectional quantum communication which can tolerate small-magnitude transmission delay but strongly requires that keys and information do not fall to the ground, and greatly improves networking flexibility and engineering practicability of a quantum communication network.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating a quantum communication method of the invention based on quantum storage;
fig. 2 shows a basic principle diagram of the quantum communication of the invention based on the mechanical zooming-out of quantum storage.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention 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 present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.
The invention 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 exchanges information with the mobile quantum storage system once, the sender compiles safety critical information into quantum states and writes the quantum states into the mobile quantum storage system, after the sender uploads the information, the geographical position of the receiver is informed to a motion control unit of the mobile quantum storage system and carries out shortest path planning, the mobile quantum storage system carries the safety critical information compiled into the quantum states to move to the receiver, the mobile quantum storage system arrives at the receiver within quantum state retention 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, the receiver reads the quantum states in the mobile quantum storage system and compiles the safety critical information, and completing the unidirectional quantum communication with time delay and maneuvering zooming out and waiting for the next task.
In some embodiments, the quantum storage system may be implemented as optical quantum storage, color center quantum storage, or cold atom quantum storage.
In some embodiments, the quantum memory system will be cleared when considered as an external disturbance.
In some embodiments, quantum states within a quantum storage system are automatically cleared when a recipient reads the quantum states in the mobile quantum storage system and compiles into security-critical information.
The invention provides an embodiment of a quantum communication method based on quantum storage for mechanical zooming out, which comprises the following steps:
s101, information loading, namely, a sender exchanges information with the mobile quantum storage system through a point-to-point quantum communication system and stores safety critical information in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver without being interfered by the outside in the quantum state retention time;
and S103, downloading information, namely, exchanging information between the receiver and the mobile quantum storage system through the point-to-point quantum communication system, reading the quantum state as safety critical information, and completing the mobile zoom-out quantum communication with time delay.
The invention provides an embodiment of a quantum-storage-based maneuvering remote quantum communication method, which comprises a sender A, a maneuvering 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 L1The quantum communication can not be completed between the A and the B through a direct connection channel, and a one-hop quantum communication link for establishing one-way transmission between the A and the B through a mobile zooming-out mode specifically comprises the following steps:
s201, information uploading: the sender A and the mobile quantum storage system carry out one-time information interaction through the point-to-point quantum communication system, the sender A compiles safety critical information into quantum states and stores the quantum states in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L2The error rate of the qubits caused by this loss cannot exceed the safety threshold;
s202, information movement: after the sender sends all the information, the address of the receiver is uploaded to a motion control system of the mobile quantum storage system, and at the moment, security critical information existing in a quantum state form is reserved in the mobile quantum storage system; the maneuvering quantum storage system moves to the sender at a high speed and arrives within the quantum state storage time; if the navigation is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the maneuvering quantum storage system reaches a receiver and exchanges information with the receiver once, the sender sends out a quantum communication signal to read a quantum state stored in the quantum storage system and analyzes the quantum state into safety related information, and the channel loss between the receiver and the maneuvering quantum storage system is L3The qubit error rate due to this loss cannot exceed the safety threshold.
In some embodiments, L is the vital information for a particular length2And L3The smaller the time it takes for the motorized quantum storage system to write and read information, but at the same time the motorized quantum storage system moves increases and 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, the motion control system is responsible for receiving 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 given track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring that the fidelity of the quantum states is lossless in the moving process, supporting the receiver to read quantum state information, and clearing the quantum states when interference occurs.
The invention provides an embodiment of a quantum communication method based on quantum storage for maneuvering remote quantum communication, which replaces channel loss cost with time delay cost and realizes the great promotion of equivalent communication distance: the mobile quantum storage system has high moving speed, arrives at a receiver in quantum storage time and transmits the safety vital information stored in a quantum state form to the receiver through the point-to-point quantum communication system, and at the moment, two communication parties of space distance exchange complete one-way communication with one-hop forwarding and practical delay, wherein the one-way communication is that the information does not fall to the ground and the one-hop forwarding is carried out.
In some embodiments, two communication parties of a point-to-point quantum communication system are interconnected by independent quantum channels, the two communication parties share information and meet the principles of non-cloning and non-copying, the two communication parties delete error information and acquire a synchronously shared quantum true random number sequence by means of negotiation interaction, information post-processing and the like, the working modes of the quantum communication system include but are not limited to two types, firstly, encryption communication is realized through quantum key distribution and one-time pad encryption and decryption operation, and secondly, direct quantum communication is directly carried out by taking a quantum 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, and the like; information carriers include, but are not limited to, optical photons, spintronics, 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, temporal 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, the motion control system is responsible for receiving 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 given track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring that the fidelity of the quantum states is lossless in the moving process, supporting the receiver to read quantum state information, and clearing the quantum states when interference occurs. The maneuvering 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, the carrying platform comprises but is not limited to carrying personnel, high-speed rails, automobiles, unmanned aerial vehicles and satellites, the storage mode comprises but is not limited to optical storage, cold atom storage, color center defect storage and the like, and detailed limitations are not performed on a motion control system, an operation mode, an information transceiving protocol, an optical and material action mode and the like of the maneuvering quantum storage system.
An embodiment of the basic principle of quantum communication based on quantum storage is illustrated in fig. 2. Basic principle of mechanical zooming quantum communication. A direct connection channel exists between the sender A and the receiver B, and the loss of the direct connection channel is L1And quantum communication can not be completed between the A and the B through a direct connection channel (namely the quantum bit error rate exceeds a safety threshold), and at the moment, a one-hop quantum communication link of one-way transmission can be established between the A and the B in a mobile remote mode, and the method specifically comprises the following steps:
(1) and (3) information uploading: the sender A and the mobile quantum storage system carry out one-time information interaction through the point-to-point quantum communication system, the sender A compiles safety critical information into quantum states and stores the quantum states in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L2The qubit error rate due to this loss cannot exceed the safety threshold.
(2) Information movement: after the sender sends all the information, the address of the receiver is uploaded to a motion control system of the mobile quantum storage system, and at the moment, security critical information existing in a quantum state form is reserved in the mobile quantum storage system; the maneuvering quantum storage system moves to the sender at a high speed and arrives within the quantum state storage time; if the navigation is caused by interference, the quantum storage system is emptied and returned to the sender;
(3) information downloading: the maneuvering quantum storage system reaches a receiver and exchanges information with the receiver once, the sender sends out a quantum communication signal to read a quantum state stored in the quantum storage system and analyzes the quantum state into safety related information, and the channel loss between the receiver and the maneuvering quantum storage system is L3The qubit error rate due to this loss cannot exceed the safety threshold.
For critical information of a particular length, L2And L3The smaller the time it takes for the motorized quantum storage system to write and read information, but at the same time the motorized quantum storage system moves increases and may exceed the quantum state retention time. Therefore, the motion trajectory of the mobile quantum storage system needs to be optimized, so that the information uploading, moving and downloading time is the shortest and the information moving time does not exceed the quantum state holding time.
The invention also provides an embodiment of a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method.
The invention also provides an embodiment of a computer program which, when executed by a processor, implements the above method.
Compared with the prior art, the invention has the following advantages:
firstly, the invention provides a compensation solution for long-distance safety critical information transfer, namely, the problem of quantum communication incapability caused by long-distance channel loss is solved through the high-speed movement of a mobile quantum storage system;
secondly, the mobile quantum storage system used by the invention can solve the problem of 'plain text information landing' of the long-distance quantum communication link based on the cascade credible relay, and realizes the whole process quantization of the communication link;
finally, the invention provides a brand-new quantum communication working mode, and the networking flexibility and the engineering practicability of the quantum communication network are greatly improved on the premise of tolerating time delay according to the working mode of the one-time reading U disk.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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 invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
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 computer storage media 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 that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A mobile remote quantum communication method based on quantum storage comprises a sender, a mobile quantum storage system and a receiver, wherein the sender exchanges information with the mobile quantum storage system once, the sender compiles safety critical information into quantum states and writes the quantum states into the mobile quantum storage system, after the sender uploads the information, the geographical position of the receiver is informed to a motion control unit of the mobile quantum storage system and carries out shortest path planning, the mobile quantum storage system carries the safety critical information compiled into the quantum states to move to the receiver, the mobile quantum storage system reaches the receiver within quantum state retention time, any problem in the moving process of the mobile quantum storage system is regarded as external interference, the mobile quantum storage system near the receiver exchanges information with the receiver once, the receiver reads the quantum states in the mobile quantum storage system and compiles the quantum states into the safety critical information, and completing the unidirectional quantum communication with time delay and maneuvering zooming out and waiting for the next task.
2. The quantum storage-based mechanical zoom-out quantum communication method according to claim 1, wherein the quantum storage system can be implemented by optical quantum storage, color center quantum storage or cold atom quantum storage.
3. The quantum storage-based maneuvering remote quantum communication method according to claim 1 or 2, characterized in that the quantum storage system is emptied when the external interference is considered.
4. The quantum-storage-based mobile zoom-out quantum communication method according to claim 1 or 2, wherein quantum states within the mobile quantum storage system are automatically cleared when the recipient reads the quantum states in the mobile quantum storage system and compiles into security-critical information.
5. The quantum storage based mechanical zoom-out quantum communication method of claim 1, wherein the method comprises the following steps:
s101, information loading, namely, a sender exchanges information with the mobile quantum storage system through a point-to-point quantum communication system and stores safety critical information in the mobile quantum storage system in a quantum state form;
s102, the mobile quantum storage system moves to a receiver without being interfered by the outside in the quantum state retention time;
and S103, downloading information, namely, exchanging information between the receiver and the mobile quantum storage system through the point-to-point quantum communication system, reading the quantum state as safety critical information, and completing the mobile zoom-out quantum communication with time delay.
6. The quantum communication method for maneuvering remote quantum communication based on quantum storage according to claim 1 or 5, characterized in that there is a direct channel between the sender A and the receiver B, and the loss of the direct channel is L1The quantum communication can not be completed between the A and the B through a direct connection channel, and a one-hop quantum communication link for establishing one-way transmission between the A and the B through a mobile zooming-out mode specifically comprises the following steps:
s201, information uploading: the sender A and the mobile quantum storage system carry out one-time information interaction through the point-to-point quantum communication system, the sender A compiles safety critical information into quantum states and stores the quantum states in the mobile quantum storage system, and the channel loss between the sender and the mobile quantum storage system is L2The error rate of the qubits caused by this loss cannot exceed the safety threshold;
s202, information movement: after the sender sends all the information, the address of the receiver is uploaded to a motion control system of the mobile quantum storage system, and at the moment, security critical information existing in a quantum state form is reserved in the mobile quantum storage system; the maneuvering quantum storage system moves to the sender at a high speed and arrives within the quantum state storage time; if the navigation is caused by interference, the quantum storage system is emptied and returned to the sender;
s203, information downloading: the maneuvering quantum storage system reaches a receiver and exchanges information with the receiver once, the sender sends out a quantum communication signal to read a quantum state stored in the quantum storage system and analyzes the quantum state into safety related information, and the channel loss between the receiver and the maneuvering quantum storage system is L3The qubit error rate due to this loss cannot exceed the safety threshold.
7. The quantum communication method of claim 6, wherein L is critical information of a certain length2And L3The smaller the time it takes for the motorized quantum storage system to write and read information, but at the same time the motorized quantum storage system moves increases and may exceed the quantum state retention time.
8. The quantum storage-based mechanical zoom-out quantum communication method according to any one of claims 1 to 7, wherein the mechanical quantum storage system comprises a physically independent motion control system and a quantum storage system, the motion control system is responsible for receiving position coordinates of a receiver provided by a sender and driving the mechanical quantum storage system to move at a high speed according to a given track, and the quantum storage system is responsible for storing quantum signals compiled by the sender into quantum states, ensuring that the quantum states are fidelity-free in the moving process, supporting the receiver to read quantum state information and clearing the quantum states when interference occurs.
9. A system for realizing the quantum storage-based maneuvering remote quantum communication method of claims 1-8, comprising a sender, a maneuvering quantum storage system, a receiver, a point-to-point quantum communication system, a motion control system, a quantum storage system,
the sender exchanges information with the mobile quantum storage system once, the sender compiles the safety-critical information into quantum states and writes the quantum states into the mobile quantum storage system, after the sender finishes uploading the information, informing the geographical position of the receiver to the motion control unit of the mobile quantum storage system and carrying out shortest path planning, wherein the mobile quantum storage system carries the safety critical confidence compiled into quantum state to move to the receiver, when the mobile quantum storage system reaches a receiver within the quantum state retention time, any problem occurs in the moving process of the mobile quantum storage system, namely the problem is regarded as external interference, the mobile quantum storage system near the receiver exchanges information with the receiver once, the receiver reads the quantum state in the mobile quantum storage system and compiles the quantum state into safety critical information, one-way quantum communication with time delay and mobile zooming out is completed, and the next task is waited;
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 position coordinates of a receiving party provided by a sending party 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 sending party into quantum states, ensuring that the quantum states are not damaged in fidelity in the moving process, supporting the receiving party to read quantum state information and emptying the quantum states when interference occurs.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 8.
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