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论文类型：期刊论文

发表时间：2015-06-26

发表刊物：PHYSICS LETTERS A

收录刊物：SCIE、Scopus

卷号：379

期号：18-19

页面范围：1228-1232

ISSN号：0375-9601

关键字：Quantum Fisher information; Squeezed reservoir; Non-perturbative master equation

摘要：The effects of reservoir squeezing on the precision of parameter estimation are investigated analytically based on non-perturbation procedures. The exact analytic quantum Fisher information (QFI) is obtained. It is shown that the QFI depends on the estimated parameter and its decay could be reduced by the squeezed reservoir compared with thermal (vacuum) reservoir, in particular, if the squeezing phase matching is satisfied. (C) 2015 Published by Elsevier B.V.