Deterministic quantum teleportation and information splitting via a peculiar W-class state

doi:10.1088/1674-1056/19/2/020308

中国物理B ›› 2010, Vol. 19 ›› Issue (2): 20308-020308.doi: 10.1088/1674-1056/19/2/020308

Deterministic quantum teleportation and information splitting via a peculiar W-class state

梅锋, 於亚飞, 张智明

Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China

收稿日期:2008-10-06 修回日期:2009-08-02 出版日期:2010-02-15 发布日期:2010-02-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos.~10404007 and 60578055), and the State Key Program for Basic Research of China (Grant No.~2007CB925204).

Deterministic quantum teleportation and information splitting via a peculiar W-class state

Mei Feng(梅锋), Yu Ya-Fei(於亚飞)^†, and Zhang Zhi-Ming(张智明)

Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China

Received:2008-10-06 Revised:2009-08-02 Online:2010-02-15 Published:2010-02-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos.~10404007 and 60578055), and the State Key Program for Basic Research of China (Grant No.~2007CB925204).

摘要/Abstract

摘要： In the paper ({\em Phys. Rev.} 2006 A {\bf 74} 062320) Agrawal {\em et al}. have introduced a kind of W-class state which can be used for the quantum teleportation of single-particle state via a three-particle von Neumann measurement, and they thought that the state could not be used to teleport an unknown state by making two-particle and one-particle measurements. Here we reconsider the features of the W-class state and the quantum teleportation process via the W-class state. We show that, by introducing a unitary operation, the quantum teleportation can be achieved deterministically by making two-particle and one-particle measurements. In addition, our protocol is extended to the process of teleporting two-particle state and splitting information.

Abstract: In the paper (Phys. Rev. 2006 A 74 062320) Agrawal et al. have introduced a kind of W-class state which can be used for the quantum teleportation of single-particle state via a three-particle von Neumann measurement, and they thought that the state could not be used to teleport an unknown state by making two-particle and one-particle measurements. Here we reconsider the features of the W-class state and the quantum teleportation process via the W-class state. We show that, by introducing a unitary operation, the quantum teleportation can be achieved deterministically by making two-particle and one-particle measurements. In addition, our protocol is extended to the process of teleporting two-particle state and splitting information.

Key words: W-class state, quantum teleportation, quantum information splitting

中图分类号: (Entanglement and quantum nonlocality)

03.65.Ud

03.67.Hk (Quantum communication) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 03.65.Ta (Foundations of quantum mechanics; measurement theory)

梅锋, 於亚飞, 张智明. Deterministic quantum teleportation and information splitting via a peculiar W-class state[J]. 中国物理B, 2010, 19(2): 20308-020308.

Mei Feng(梅锋), Yu Ya-Fei(於亚飞), and Zhang Zhi-Ming(张智明). Deterministic quantum teleportation and information splitting via a peculiar W-class state[J]. Chin. Phys. B, 2010, 19(2): 20308-020308.

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Deterministic quantum teleportation and information splitting via a peculiar W-class state

Deterministic quantum teleportation and information splitting via a peculiar W-class state

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