Beyond the standard quantum limit for parametric amplification of broadband signals
Beyond the standard quantum limit for parametric amplification of broadband signals
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Author / Creator
Renger, M. , Pogorzalek, S. , Chen, Q. , Nojiri, Y. , Inomata, K. , Nakamura, Y. , Partanen, M. , Marx, A. , Gross, R. , Deppe, F. and Fedorov, K. G.
Publisher
London: Nature Publishing Group UK
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Language
English
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Publisher
London: Nature Publishing Group UK
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Contents
The low-noise amplification of weak microwave signals is crucial for countless protocols in quantum information processing. Quantum mechanics sets an ultimate lower limit of half a photon to the added input noise for phase-preserving amplification of narrowband signals, also known as the standard quantum limit (SQL). This limit, which is equivalent...
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Full title
Beyond the standard quantum limit for parametric amplification of broadband signals
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TN_cdi_doaj_primary_oai_doaj_org_article_3bd1f2b588c34a088b8a3a8a3cc5738f
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_doaj_primary_oai_doaj_org_article_3bd1f2b588c34a088b8a3a8a3cc5738f
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ISSN
2056-6387
E-ISSN
2056-6387
DOI
10.1038/s41534-021-00495-y
