Gaussian States Minimize the Output Entropy of One-Mode Quantum Gaussian Channels
نویسندگان
چکیده
منابع مشابه
Gaussian states minimize the output entropy of one-mode quantum Gaussian channels
We prove the long-standing conjecture stating that Gaussian thermal input states minimize the output von Neumann entropy of one-mode phase-covariant quantum Gaussian channels among all the input states with a given entropy. Phase-covariant quantum Gaussian channels model the attenuation and the noise that affect any electromagnetic signal in the quantum regime. Our result is crucial to prove th...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2017
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.118.160503