Optimal controlled quantum stealth state transfer method with an adjustable threshold value for any unknown n particles

A teleportation and threshold technology, applied in the quantum field, can solve problems such as limiting the availability and flexibility of the protocol, and the inability to implement the protocol, and achieve the effect of improving flexibility and making the protocol simple and easy to use.

Active Publication Date: 2019-08-02
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Research on controlled quantum teleportation usually involves a fixed number of controllers, which limits the usability and

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  • Optimal controlled quantum stealth state transfer method with an adjustable threshold value for any unknown n particles
  • Optimal controlled quantum stealth state transfer method with an adjustable threshold value for any unknown n particles
  • Optimal controlled quantum stealth state transfer method with an adjustable threshold value for any unknown n particles

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Embodiment Construction

[0057] 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.

[0058] The main realization idea of ​​the present invention is: in the system based on quantum communication, the source node Alice and the destination node Bob, with the assistance of the control group, determine the form of the quantum channel between the two to complete the unknown quantum state the stealth transfer process. Some members of the two control groups perform single particle measurements on the particles they own, and announce the measurement results to Alice and Bob. Alice and Bob can analyze the form of the specific quantum channel between them, thereby promoting the efficient and safe transmission of information.

[0059] See figure 2 , the present invention ...

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Abstract

The invention discloses an optimal controlled quantum stealth state transfer method with an adjustable threshold value for any unknown n particles. The invention discloses an optimal controlled quantum stealth state transfer method for any unknown n particles with an adjustable threshold value. The method is characterized by comprising the following steps that: a central service node prepares a corresponding entanglement state, and distributes corresponding entanglement particles to Alice and Bob of two communication parties and any one member of three control groups C1, C2 and C3 through a quantum channel; and other members of the three control groups C1, C2 and C3 execute C-by taking the particles sent by the central service node as control quantum bits and | 0) as target quantum bits. The NOT operation generates control particles. The threshold-adjustable optimal controlled quantum stealth transmission method for any unknown n particles has the advantages that the threshold-adjustable optimal controlled quantum stealth transmission method for any unknown n particles realizes the safety and flexibility of information transmission.

Description

technical field [0001] The invention relates to the quantum field, in particular to an optimally controlled quantum teleportation method for any unknown n particles with an adjustable threshold. Background technique [0002] Quantum information and quantum computing are emerging interdisciplinary subjects based on the principles of quantum mechanics, classical information science and classical computing science. Due to the characteristics of superposition, non-clonability, and inaccuracy of quantum states, quantum communication has unique advantages in terms of large communication capacity and high security, and can be widely used in military, national defense, and information security fields. Among them, thanks to the continuous updating and improvement of various branch protocols such as quantum secure direct communication, quantum dialogue, and quantum key distribution, quantum communication products with practical value have gradually been applied. [0003] Since Bennet...

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Application Information

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IPC IPC(8): H04B10/70
CPCH04B10/70
Inventor 王宏基姜敏陈晨孙兵黄旭
Owner SUZHOU UNIV
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