Teleportation of arbitrary unknown two-atom statewith cluster state via thermal cavity
Zhang Wen(章文)a), Liu Yi-Min(刘益民)b), Liu Jun(刘俊)a), and Zhang Zhan-Jun(张战军)a)†
aKey Laboratory of Optoelectronic Information Acquisition& Manipulation of Ministry of Education of China, School of Physics& Material Science, Anhui University, Hefei 230039, China; bDepartment of Physics, Shaoguan University, Shaoguan 512005, China
Abstract This paper proposes a scheme for implementing the teleportation of an arbitrary unknown two-atom state by using a cluster state of four identical 2-level atoms as quantum channel in a thermal cavity. The two distinct advantages of the present scheme are: (i) The discrimination of 16 orthonormal cluster states in the standard teleportation protocol is transformed into the discrimination of single-atom states. Consequently, the discrimination difficulty of states is degraded. (ii) The scheme is insensitive to the cavity field state and the cavity decay for the thermal cavity is only virtually excited when atoms interact with it. Thus, the scheme is more feasible.
Received: 24 December 2007
Revised: 11 January 2008
Accepted manuscript online:
Fund: Project supported by the Program
for New Century Excellent Talents at the University of China (Grant
No NCET-06-0554), the National Natural Science Foundation of China
(Grant Nos 60677001 and 10747146), the Science-Technology Fund of
Anhui Province for Ou
Cite this article:
Zhang Wen(章文), Liu Yi-Min(刘益民), Liu Jun(刘俊), and Zhang Zhan-Jun(张战军) Teleportation of arbitrary unknown two-atom statewith cluster state via thermal cavity 2008 Chin. Phys. B 17 3203
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