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Butterfly network coding method based on bidirectional mixed quantum information exchange

A quantum information and butterfly network technology, applied in the field of communication networks, can solve the problems of low quantum channel utilization and complex channel transmission, so as to improve the information transmission rate and network throughput, reduce the difficulty coefficient, and expand the scope of application Effect

Active Publication Date: 2021-06-11
SUZHOU UNIV
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Problems solved by technology

[0023] For this reason, the technical problem to be solved by the present invention is to overcome the problems of low quantum channel utilization rate and complicated channel transmission in the prior art

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  • Butterfly network coding method based on bidirectional mixed quantum information exchange
  • Butterfly network coding method based on bidirectional mixed quantum information exchange
  • Butterfly network coding method based on bidirectional mixed quantum information exchange

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Embodiment Construction

[0080] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0081] In the description of the present invention, it should be understood that the term "comprising" is intended to cover a non-exclusive inclusion, such as a process, method, system, product or device that includes a series of steps or units, and is not limited to the listed Instead, the steps or elements optionally also include steps or elements that are not listed, or optionally also include other steps or elements that are inherent to the process, method, product or apparatus.

[0082] Explanation of technical terms of the present invention:

[0083] 1. Brown state

[0084] The present invention uses a novel five-particle entanglement state, and the Brown state has been pro...

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Abstract

The invention discloses a butterfly network coding method based on bidirectional mixed quantum information exchange, and the method comprises the following steps: constructing a butterfly network model, crossing and sharing a five-bit Brown channel by a source node, a destination node and a control party, and carrying out particle distribution; enabling a target node to introduce auxiliary particles, executing CNOT operation, enabling two pairs of dialogue parties to select proper measurement bases to measure the particles, enabling the dialogue parties to send measurement results to the other party, and if a control party agrees with information exchange between the dialogue parties, enabling the control party to execute single particle measurement and send the measurement results to the dialogue parties; enabling the dialogue party to send a measurement result to a corresponding intermediate node; enabling the intermediate node to send the information codes to the four dialogue parties; decoding by each dialogue party, and recovering a target state by executing proper unitary operation. The information transmission rate is greatly improved by adopting the butterfly network, the source node and the destination node have the same status, the application range of the quantum channel is expanded, and the operation difficulty coefficient is reduced.

Description

technical field [0001] The invention relates to the technical field of communication networks, in particular to a butterfly network encoding method based on two-way hybrid quantum information exchange. Background technique [0002] The so-called quantum channel is actually quantum entanglement between communicating parties. The application of quantum entanglement in communication has created the "quantum dense coding" that uses quantum channels to transmit classical bits, the "quantum teleportation" that uses classical assisted methods to transmit quantum states, and the "absolutely safe" required for confidential transmission of information. Quantum cryptography" and other classical information theories [1]. As the carrier of quantum communication and quantum computing, quantum entanglement [2, 3] is widely used in quantum teleportation, quantum secret key distribution, quantum dense coding, quantum dialogue and other fields. [0003] Remote state preparation (RSP) is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/70H04L1/00
CPCH04B10/70H04L1/0076
Inventor 张佳慧丁祎姜敏江聪赵文浩龚仁智
Owner SUZHOU UNIV
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