Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference

doi:10.1088/1674-1056/22/5/050305

中国物理B ›› 2013, Vol. 22 ›› Issue (5): 50305-050305.doi: 10.1088/1674-1056/22/5/050305

Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference

周彦辉, 王磊, 赖晓磊

Department of Basic Courses, Zhengzhou College of Science & Technology, Zhengzhou 450064, China

收稿日期:2012-09-16 修回日期:2012-12-02 出版日期:2013-04-01 发布日期:2013-04-01

Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference

Zhou Yan-Hui (周彦辉), Wang Lei (王磊), Lai Xiao-Lei (赖晓磊)

Department of Basic Courses, Zhengzhou College of Science & Technology, Zhengzhou 450064, China

Received:2012-09-16 Revised:2012-12-02 Online:2013-04-01 Published:2013-04-01
Contact: Zhou Yan-Hui E-mail:yanhuizhou@126.com

摘要/Abstract

摘要： By means of the cavity-assisted photon interference, a simple scheme is proposed to implement symmetric economical phase-covariant quantum cloning machine of two remote qubits, with each in a separate cavity. With our present scheme, a high-fidelity cloning machine is realized. Our scheme may be quite useful in terms of the distributed quantum information processing.

关键词: economical phase-covariant quantum cloning machine, distant atomic qubits, single-photon interference

Abstract: By means of the cavity-assisted photon interference, a simple scheme is proposed to implement symmetric economical phase-covariant quantum cloning machine of two remote qubits, with each in a separate cavity. With our present scheme, a high-fidelity cloning machine is realized. Our scheme may be quite useful in terms of the distributed quantum information processing.

Key words: economical phase-covariant quantum cloning machine, distant atomic qubits, single-photon interference

中图分类号: (Quantum information)

03.67.-a

03.67.Hk (Quantum communication)

周彦辉, 王磊, 赖晓磊. Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference[J]. 中国物理B, 2013, 22(5): 50305-050305.

Zhou Yan-Hui (周彦辉), Wang Lei (王磊), Lai Xiao-Lei (赖晓磊). Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference[J]. Chin. Phys. B, 2013, 22(5): 50305-050305.

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Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference

Scheme for implementing economical phase-covariant quantum cloning machine of distant atomic qubits with single-photon interference

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