中国物理B ›› 2008, Vol. 17 ›› Issue (10): 3729-3733.doi: 10.1088/1674-1056/17/10/033

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An applicable and resource-economical scheme for the teleportation of W state via spin-path entangled quantum channel

康国栋, 方卯发   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • 收稿日期:2008-03-07 出版日期:2008-10-20 发布日期:2008-10-20
  • 基金资助:
    Projects supported by the National Natural Science Foundation of China (Grant No 10374025), the Natural Science Foundation of Hunan Province, China (Grant No 07JJ3013), and the Education Ministry of Hunan Province, China (Grant No 06A038).

An applicable and resource-economical scheme for the teleportation of W state via spin-path entangled quantum channel

Kang Guo-Dong(康国栋) and Fang Mao-Fa(方卯发)†   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • Received:2008-03-07 Online:2008-10-20 Published:2008-10-20
  • Supported by:
    Projects supported by the National Natural Science Foundation of China (Grant No 10374025), the Natural Science Foundation of Hunan Province, China (Grant No 07JJ3013), and the Education Ministry of Hunan Province, China (Grant No 06A038).

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摘要： In this paper, we accomplish the teleportation of an unknown three-particle maximally entangled $W$ state by using a spin-path entangled quantum channel which may be realized experimentally based on the advanced theory and technique in Bose--Einstein condensate (BEC) of molecule, micro-fabricated wave guide and simple quantum logic gate. Similarly, we can make an arbitrary $n$-particle entangled Greenberger--Horne--Zeilinger (GHZ) state ($n\ge 4$) teleported through this kind of quantum channel. It may have important applications due to its resource-economic and practical features.

关键词: teleportation, spin-path entanglement, W state, fidelity

Abstract: In this paper, we accomplish the teleportation of an unknown three-particle maximally entangled $W$ state by using a spin-path entangled quantum channel which may be realized experimentally based on the advanced theory and technique in Bose--Einstein condensate (BEC) of molecule, micro-fabricated wave guide and simple quantum logic gate. Similarly, we can make an arbitrary $n$-particle entangled Greenberger--Horne--Zeilinger (GHZ) state ($n\ge 4$) teleported through this kind of quantum channel. It may have important applications due to its resource-economic and practical features.

Key words: teleportation, spin-path entanglement, W state, fidelity

中图分类号:  (Entanglement and quantum nonlocality)

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