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论文类型：期刊论文

发表时间：2017-10-01

发表刊物：ANNALS OF PHYSICS

收录刊物：Scopus、SCIE

卷号：385

页面范围：757-768

ISSN号：0003-4916

关键字：Microwave quantum illumination; Optical parametric amplifier; Lower error probability

摘要：Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background. Entangled sources between microwave and optical fields can be exploited to improve detection in microwave quantum illumination technique. We proposed a scheme to enhance the entanglement between the output fields of microwave and optical cavity by introducing optical parametric amplifier medium in cavity optomechanical system. We show that improving signal-to-noise ratio and decreasing error probability of detection can be obtained consequently even for objects with low reflectivity in the presence of optical parametric amplifier. (C) 2017 Elsevier Inc. All rights reserved.