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A Channel Multiplexing Method Based on Five-bit Brown State

A channel multiplexing, five-bit technology, applied in the field of channel multiplexing based on the five-bit brown state, can solve the problem of low channel utilization

Active Publication Date: 2019-10-18
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Traditional quantum teleportation and quantum remote state preparation are based on a single channel communication mode, that is, one party transmits quantum information and the other party receives it, and the utilization rate of the channel is low

Method used

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  • A Channel Multiplexing Method Based on Five-bit Brown State
  • A Channel Multiplexing Method Based on Five-bit Brown State
  • A Channel Multiplexing Method Based on Five-bit Brown State

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Embodiment Construction

[0052] The present invention is a channel multiplexing method based on a five-bit brown state, including a channel multiplexing method in which quantum teleportation and remote state preparation coexist, a channel multiplexing method in which quantum teleportation and quantum dense coding coexist, and remote state preparation There are three parts to the channel multiplexing method coexisting with quantum dense coding. In addition, the present invention relates to CNOT gate operation and H gate (Hadamard gate) operation, and their matrix forms are as follows:

[0053]

[0054] Among them, in the CNOT gate operation, it generally consists of a control particle A and a controlled particle B. As follows:

[0055]

[0056] When the control particle A is |0>, the state of the controlled particle remains unchanged (a); when the control particle A is |1>, the state of the controlled particle will flip (b).

[0057] 1. Channel multiplexing method with coexistence of quantum te...

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Abstract

The invention discloses a channel multiplexing method based on a 5-bit brown state. The method comprises three parts consisting of a channel multiplexing method in which quantum teleportation and remote state preparation coexist, a channel multiplexing method in which quantum teleportation and quantum dense coding coexist, and a channel multiplexing method in which remote state preparation and quantum dense coding coexist. According to the channel multiplexing method provided by the invention, quantum information can be simultaneously sent and received by two parties of communication, and thequantum information exchange modes are effectively enriched.

Description

technical field [0001] The invention belongs to the technical field of quantum security communication, in particular to a channel multiplexing method based on a five-bit brown state. Background technique [0002] Quantum cryptography is the product of the combination of cryptography and quantum mechanics. The two parties in the communication usually use the quantum state as the information carrier, and use the basic principles of quantum mechanics to establish information exchange between the two parties in the secure communication through the quantum channel. The security is guaranteed by the uncertainty relationship in quantum mechanics and the quantum non-cloning theorem. Absolute security means that the eavesdropper has a very high IQ, adopts the most brilliant eavesdropping strategy, and uses all possible advanced instruments. Under these conditions, the key is still safe. There are two basic eavesdropping strategies for eavesdroppers: one is to obtain the required inf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/079H04B10/516H04B10/70
Inventor 曹刚方盛晖姜敏李青夏志新
Owner SUZHOU UNIV
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