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论文类型：期刊论文

发表时间：2012-07-01

发表刊物：COMMUNICATIONS IN THEORETICAL PHYSICS

收录刊物：SCIE、ISTIC、Scopus

卷号：58

期号：1

页面范围：47-50

ISSN号：0253-6102

关键字：correlation; entanglement; non-destructive probing; Bell diagonal state

摘要：In this paper, we propose a very simple scheme to probe the quantum and classical correlation including quantum entanglement of Bell diagonal state. In the probing process, the correlation of Bell diagonal state, even the state itself, is not disturbed, which means a non-destructive probing. In addition, our scheme can be performed even though the two qubits of the Bell diagonal state are separate in space.