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论文类型：期刊论文

发表时间：2008-05-15

发表刊物：COMMUNICATIONS IN THEORETICAL PHYSICS

收录刊物：SCIE、ISTIC、CSCD

卷号：49

期号：5

页面范围：1199-1202

ISSN号：0253-6102

关键字：teleportation; W state; QED cavity

摘要：A scheme is proposed for the controlled teleportation of an arbitrary two-atom state via special W-type entangled states and QED cavity. The scheme does not involve the direct joint Bell-state-measurement (BSM). We show that the quantum information is split into two parts, thus the original atomic state cannot be perfectly restored by the receiver without the other agent's collaboration and classical communication. In addition, the physical realization of this scheme is not difficult.