Mechanical Squeezing via Fast Continuous Measurement
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Author(s)
Meng, Chao
Brawley, George A
Bennett, James S
Vanner, Michael R
Bowen, Warwick P
Griffith University Author(s)
Year published
2020
Metadata
Show full item recordAbstract
We revisit quantum state preparation of an oscillator by continuous linear position measurement. Quite general analytical expressions are derived for the conditioned state of the oscillator. Remarkably, we predict that quantum squeezing is possible outside of both the backaction dominated and quantum coherent oscillation regimes, relaxing experimental requirements even compared to ground-state cooling. This provides a new way to generate nonclassical states of macroscopic mechanical oscillators, and opens the door to quantum sensing and tests of quantum macroscopicity at room temperature.We revisit quantum state preparation of an oscillator by continuous linear position measurement. Quite general analytical expressions are derived for the conditioned state of the oscillator. Remarkably, we predict that quantum squeezing is possible outside of both the backaction dominated and quantum coherent oscillation regimes, relaxing experimental requirements even compared to ground-state cooling. This provides a new way to generate nonclassical states of macroscopic mechanical oscillators, and opens the door to quantum sensing and tests of quantum macroscopicity at room temperature.
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Journal Title
Physical Review Letters
Volume
125
Issue
4
Copyright Statement
© 2020 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Quantum physics
Engineering
Mathematical sciences
Physical sciences
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
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