A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel

doi:10.1088/1674-1056/19/2/020307

中国物理B ›› 2010, Vol. 19 ›› Issue (2): 20307-020307.doi: 10.1088/1674-1056/19/2/020307

A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel

刘大明, 王艳伟, 江秀梅, 郑亦庄

College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035, China

收稿日期:2009-05-11 修回日期:2009-07-14 出版日期:2010-02-15 发布日期:2010-02-15

A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel

Liu Da-Ming(刘大明), Wang Yan-Wei(王艳伟), Jiang Xiu-Mei(江秀梅), and Zheng Yi-Zhuang(郑亦庄)^†

College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035, China

Received:2009-05-11 Revised:2009-07-14 Online:2010-02-15 Published:2010-02-15

摘要/Abstract

摘要： A criterion for he tquantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel is presented by introducing a term of the ``judgment operator''. Using the criterion, not only the qualitative judgment of the possibility of successful teleportation can be made but also the quantitative calculation of the probability of successful teleportation can be explicitly given. In addition, a new genuine four-qubit entangled state is proposed, which could not belong to the category of previously known states under stochastic local operations and classical communication.

Abstract: A criterion for he tquantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel is presented by introducing a term of the ``judgment operator''. Using the criterion, not only the qualitative judgment of the possibility of successful teleportation can be made but also the quantitative calculation of the probability of successful teleportation can be explicitly given. In addition, a new genuine four-qubit entangled state is proposed, which could not belong to the category of previously known states under stochastic local operations and classical communication.

Key words: teleportation criterion, judgment operator, generalized measurement base

中图分类号: (Quantum communication)

03.67.Hk

03.67.Lx (Quantum computation architectures and implementations) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 03.65.Ud (Entanglement and quantum nonlocality)

刘大明, 王艳伟, 江秀梅, 郑亦庄. A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel[J]. 中国物理B, 2010, 19(2): 20307-020307.

Liu Da-Ming(刘大明), Wang Yan-Wei(王艳伟), Jiang Xiu-Mei(江秀梅), and Zheng Yi-Zhuang(郑亦庄) . A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel[J]. Chin. Phys. B, 2010, 19(2): 20307-020307.

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A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel

A criterion for quantum teleportation of an arbitrary N-particle state via a 2N-particle quantum channel

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