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Optical communication noise rejection using correlated photons. (English) Zbl 1020.94501
Summary: This paper describes a completely new way to perform noise rejection using a two-photon sensitive detector and taking advantage of the properties of correlated photons to improve an optical communications link in the presence of uncorrelated noise. In particular, a detailed analysis is made of the case where a classical link would be saturated by an intense background, such as when a satellite is in front of the sun, and identifies a regime where the quantum correlating system has superior performance.
94A05 Communication theory
81P99 Foundations, quantum information and its processing, quantum axioms, and philosophy
Full Text: DOI
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