Acta Metallurgica Sinica(English letters) ›› 2008, Vol. 15 ›› Issue (1): 102-105.doi: 1005-8885 (2008) 01-0102-04

• Quantum Cryptography • 上一篇    下一篇

Teleportation of an unknown two-particle entangled state via an asymmetric three-particle entanglement state

陈秀波;杜建忠;温巧燕;朱甫臣   

  1. State key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2007-03-06 修回日期:1900-01-01 出版日期:2008-03-31
  • 通讯作者: 陈秀波

Teleportation of an unknown two-particle entangled state via an asymmetric three-particle entanglement state

  1. State key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2007-03-06 Revised:1900-01-01 Online:2008-03-31
  • Contact: Chen Xiubo

摘要:

In this article, a protocol for the teleportation of an unknown two-particle entanglement is proposed. The feature of the present protocol is that we utilize an asymmetric three- particle entangled state as the quantum channel. The optimal discrimination between two nonorthogonal quantum states is adopted. It is shown that an unknown two-particle entangled state can be probabilistically teleported from the sender to the remote receiver on condition that the co-sender successfully collaborates. The fidelity in this protocol is one. In addition, the probability of the successful teleportation is calculated and all kinds of transformations performed by the sender and the receiver are provided in detail.

关键词:

teleportation,;two-particle;entangled;state,;asym-;metric;three-particle;entangled;state,;generalized;measurement

Abstract:

In this article, a protocol for the teleportation of an unknown two-particle entanglement is proposed. The feature of the present protocol is that we utilize an asymmetric three- particle entangled state as the quantum channel. The optimal discrimination between two nonorthogonal quantum states is adopted. It is shown that an unknown two-particle entangled state can be probabilistically teleported from the sender to the remote receiver on condition that the co-sender successfully collaborates. The fidelity in this protocol is one. In addition, the probability of the successful teleportation is calculated and all kinds of transformations performed by the sender and the receiver are provided in detail.

Key words:

teleportation;two-particle entangled state;asym- metric three-particle entangled state;generalized measurement

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