中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1682-1685.doi: 10.1088/1009-1963/15/8/007

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Multi-party dense coding in non-symmetric quantum channel

付长宝, 夏　岩, 张　寿   

  1. Department of Physics, College of Science,Yanbian University, Yanji 133002, China
  • 收稿日期:2005-11-09 修回日期:2005-12-12 出版日期:2006-08-20 发布日期:2006-08-20

Multi-party dense coding in non-symmetric quantum channel

Fu Chang-Bao(付长宝), Xia Yan(夏岩), and Zhang Shou(张寿)†   

  1. Department of Physics, College of Science,Yanbian University, Yanji 133002, China
  • Received:2005-11-09 Revised:2005-12-12 Online:2006-08-20 Published:2006-08-20

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摘要： A three- and an (N+1)-party dense coding scheme in the case of non-symmetric Hilbert spaces of the particles of a quantum channel are investigated by using a multipartite entangled state. In the case of the (N+1)-party dense coding scheme, we show that the amount of classical information transmitted from N senders to one receiver is improved.

关键词: non-symmetric Hilbert space, dense coding, unitary transformation

Abstract: A three- and an (N+1)-party dense coding scheme in the case of non-symmetric Hilbert spaces of the particles of a quantum channel are investigated by using a multipartite entangled state. In the case of the (N+1)-party dense coding scheme, we show that the amount of classical information transmitted from N senders to one receiver is improved.

Key words: non-symmetric Hilbert space, dense coding, unitary transformation

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud