Overarching framework between Gaussian quantum discord and Gaussian quantum illumination
نویسندگان
چکیده
منابع مشابه
Gaussian quantum discord.
We extend the quantum discord to continuous variable systems and evaluate Gaussian quantum discord C(ϱ) for bipartite Gaussian states. In particular, for squeezed-thermal states, we explicitly maximize the extractable information over Gaussian measurements: C(ϱ) is minimized by a generalized measurement rather than a projective one. Almost all squeezed-thermal states have nonzero Gaussian disco...
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Paolo Giorda,1 Michele Allegra,1,2,3 and Matteo G. A. Paris4,5 1Institute for Scientific Interchange Foundation (ISI), I-10126 Torino, Italy 2Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy 3INFN, Sezione di Torino, I-10125 Torino, Italy 4Dipartimento di Fisica, Università degli Studi di Milano, I-20133 Milano, Italy 5CNISM, Unità di Milano, I-20133 Milano, Italy (Received 1...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2017
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.95.022333