Mechanical Squeezing via Fast Continuous Measurement
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Brawley, George A
Bennett, James S
Vanner, Michael R
Bowen, Warwick P
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Abstract
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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Physical Review Letters
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125
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4
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© 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.
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Quantum physics
Engineering
Mathematical sciences
Physical sciences
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
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Meng, C; Brawley, GA; Bennett, JS; Vanner, MR; Bowen, WP, Mechanical Squeezing via Fast Continuous Measurement, Physical Review Letters, 2020, 125 (4), pp. 043604