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A quantum control remote joint implementation method

An implementation method and remote technology, applied in the quantum field, can solve the problems of difficult preparation and channel evolution of quantum entangled channels, and achieve the effects of good anti-noise performance, high security and improved security.

Inactive Publication Date: 2019-05-03
GUANGXI UNIV FOR NATITIES
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Problems solved by technology

[0004] In addition, from the perspective of quantum entanglement channels, it is difficult to prepare quantum entanglement channels in remote quantum manipulation based on multi-particle entangled GHZ states, and the prepared channels are easily affected by environmental noise and evolve into non-maximally entangled channels.

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  • A quantum control remote joint implementation method
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Embodiment Construction

[0036]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0037] like figure 1 As shown, according to a diagram of the entangled particle allocation method of a quantum control remote joint realization method of the present invention, in addition, after the entanglement channel is prepared, it is easily affected by channel noise and decoherence, which affects the reliability of quantum communication, resulting in distortion of the loaded quantum information. The present invention selects a cluster state that can be prepa...

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Abstract

The invention discloses a quantum control remote joint implementation method, which belongs to the field of quantum, and is characterized in that three senders share quantum control information needing to be executed, and remote quantum control is completed in a joint assistance manner. The method of the invention adopts an easy-prepared, anti-noise five-particle entangled state as a quantum entangled channel to realize joint control of quantum states; a sender selects to execute corresponding single event measurement according to known remote quantum control information needing to be executedand measurement results of other communication parties, and a receiver executes local unitary operation on other particles according to measurement results of all the senders, so that a target statecan be prepared on the other particles. According to the invention, quantum communication and quantum measurement technologies are utilized to realize quantum state remote joint control. The method has the advantages of high feasibility and high safety.

Description

technical field [0001] The invention relates to the field of quantum technology, in particular to a remote joint realization method of quantum control. Background technique [0002] The application of quantum states in quantum information provides many new information processing methods for quantum communication. Quantum computers based on quantum superposition states have magical parallel computing capabilities, which can exponentially accelerate the factorization algorithm of large numbers and accelerate database searches for square roots. algorithm. Quantum information has attracted extensive attention from researchers from all over the world, and quantum dense coding, quantum state sharing, quantum repeater, quantum computation, and quantum safe direct communication have been developed. Communication (quantumsecure direct communication), quantum teleportation (quantum teleportation), and quantum state remote joint preparation (joint remote state preparation) and many ot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
Inventor 周萍焦显芳吕舒欣
Owner GUANGXI UNIV FOR NATITIES
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