| Mechanical Squeezing via Parametric Amplification and Weak Measurement. | |
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MedLine Citation:
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PMID: 22181880 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Nonlinear forces allow motion of a mechanical oscillator to be squeezed below the zero-point motion. Of existing methods, mechanical parametric amplification is relatively accessible, but previously thought to be limited to 3 dB of squeezing in the steady state. We consider the effect of applying continuous weak measurement and feedback to this system. If the parametric drive is optimally detuned from resonance, correlations between the quadratures of motion allow unlimited steady-state squeezing. Compared to backaction evasion, we demonstrate that the measurement strength, temperature and efficiency requirements for quantum squeezing are significantly relaxed. |
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Authors:
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A Szorkovszky; A C Doherty; G I Harris; W P Bowen |
Publication Detail:
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Type: Journal Article Date: 2011-11-15 |
Journal Detail:
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Title: Physical review letters Volume: 107 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-12-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 213603 Citation Subset: IM |
Affiliation:
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Centre for Engineered Quantum Systems, University of Queensland, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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