Achieving no decoherence quantum information transfer by using exchange decay between qubits

J4 ›› 2014, Vol. 31 ›› Issue (1): 40-46.

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Achieving no decoherence quantum information transfer by using exchange decay between qubits

JI Ying-Hua HUANG Jian-Hua LIU Yong-Mei

1 Department of Physics, Jiangxi Normal University, Nanchang, Jiangxi 330022, China 2 College of Mathematics and Information Science of Jiangxi Normal University, Nanchang, Jiangxi, 330022 3 Key Laboratory of Photoelectronics and Telecommunication of Jiangxi Province, Nanchang, Jiangxi 330022, China

Received:2013-02-22 Revised:2013-07-26 Published:2014-01-28 Online:2013-12-31

Abstract

Abstract: In quantum information transfer process, the role of the environment would cause decoherence and disentangled. Using the advantages of different types of qubits to constitute a hybrid qubits system is a useful way for overcoming decoherence effects and achieving quantum information transfer. This paper points out that through combining the energy loss in the process of information exchange of qubits (exchanging decay between the qubits) and the decoherence effects of the external environment organically, people can achieve quantum information transfer with no decoherence effects. And this paper also has given out the constraint relations matching exchange decay rate and decoherence time in no decoherence effects quantum information transfer.

Key words: information transfer

CLC Number:

O431

JI Ying-Hua HUANG Jian-Hua LIU Yong-Mei . Achieving no decoherence quantum information transfer by using exchange decay between qubits[J]. J4, 2014, 31(1): 40-46.

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Achieving no decoherence quantum information transfer by using exchange decay between qubits

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