Phase-preserving amplification near the quantum limit with a Josephson ring modulator
نویسندگان
چکیده
منابع مشابه
Analog information processing at the quantum limit with a Josephson ring modulator
Amplifiers are crucial in every experiment carrying out a very sensitive measurement. However, they always degrade the information by adding noise. Quantum mechanics puts a limit on how small this degradation can be. Theoretically, the minimum noise energy added by a phase-preserving amplifier to the signal it processes amounts at least to half a photon at the signal frequency. Here we propose ...
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Article history: Available online 10 August 2016
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ژورنال
عنوان ژورنال: Nature
سال: 2010
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature09035