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A Quantum Stealth Communication Method Based on 5-particle Brown State Transmitting 4-Particle State

A communication method and particle technology, applied in transmission systems, digital transmission systems, security communication devices, etc., can solve the problem of low information communication efficiency and achieve the effect of ensuring security

Active Publication Date: 2020-07-28
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a quantum stealth communication method based on the 5-particle Brown state transmission of any 4-particle state, to solve the problem of low information communication efficiency of the quantum stealth communication method in the prior art

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  • A Quantum Stealth Communication Method Based on 5-particle Brown State Transmitting 4-Particle State
  • A Quantum Stealth Communication Method Based on 5-particle Brown State Transmitting 4-Particle State
  • A Quantum Stealth Communication Method Based on 5-particle Brown State Transmitting 4-Particle State

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Embodiment Construction

[0039] 4-particle state: The state of the 4-particles is uncertain and arbitrary. When the 4-particle state is measured, the 4-particle state will be obtained accurately.

[0040] Particle measurement: determine the state of the particle, and the state of the particle after measurement is accurate.

[0041] Comply with the above technical solutions, such as figure 1 As shown, the present invention discloses a quantum stealth communication method based on 5-particle Brown state transmission of 4-particle states. The sender Alice prepares a quantum state channel, and the sender Alice transfers the 4-particle state carrying the secret information sequence G through the quantum state channel. Particle|W ijkl >1,2,3,4 The state is transmitted to the receiver Bob, wherein the quantum state channel is composed of 5 particle Brown states.

[0042] The quantum teleportation communication method provided by this application uses the maximum entanglement Brown state as a quantum state ...

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Abstract

The invention discloses a quantum invisible communication method based on a 5-particle Brown state to transmit a 4-particle state. The sender Alice prepares a quantum state channel, and the sender Alice transmits the 4-particle |W carrying the secret information sequence G through the quantum state channel. ijkl > 1,2,3,4 The state is transmitted to the receiver Bob, where the quantum state channel is composed of 5-particle Brown states. During the communication process, the sender retains 1 qubit and can communicate and exchange 4 qubits, thereby realizing 5 classic bit secrets. Transmission of information. At the same time, binary dense coding is used to realize the transmission of 5-bit secret information. The communication method provided by the invention has a communication efficiency of 33%, and can effectively prevent eavesdropping attacks on information during the communication process.

Description

technical field [0001] The invention relates to a quantum stealth communication method, in particular to a quantum stealth communication method based on 5-particle Brown states transmitting 4-particle states. Background technique [0002] Since Bennet and other six people first proposed the idea of ​​quantum teleportation, quantum teleportation has become one of the important research objects in the field of quantum communication. People have successively proposed many different experimentally feasible schemes to transmit unknown particle states, such as: non-maximum Particle state teleportation under entanglement channels, multi-level single particle state teleportation, multi-particle state teleportation, continuous variable teleportation, coherent state teleportation, etc. [0003] The existing technology proposes a deterministic secure quantum communication protocol, one of which uses the Brown state of 5 qubits. In order to ensure the safe transmission of information, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0852
Inventor 曹正文梁可心宋丹曾贵华彭进业贺晨杨涛张明慧
Owner NORTHWEST UNIV