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arXiv:1812.00586 · Annals of Physics

Improve microwave quantum illumination via optical parametric amplifier

Biao Xiong, Xun Li, Xiaoyu Wang, Ling Zhou

Published Aug 31, 2017• 37 citations
arXivHTMLPDF
DOI
10.1016/j.aop.2017.08.024

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Quantum illumination (QI) is a technique exploiting the quantum entanglement between the transmitted signal and the idler to enhance the detection performance of a quantum radar over the classical radar. Here, we propose the double optical parameter amplifier (OPA) detector for QI so that the effect of entanglement between the idler and the returned signal beams is maximized. We show here how even when a weak returned signal is embedded in a large background noise, the probability of detection can be significantly increased.