Preprint article · Journal article
Squeezing-enhanced measurement sensitivity in a cavity optomechanical system : Squeezing-enhanced measurement
We determine the theoretical limits to squeezing-enhanced measurement sensitivity of mechanical motion in a cavity optomechanical system. The motion of a mechanical resonator is transduced onto quadrature fluctuations of a cavity optical field and a measurement is performed on the optical field exiting the cavity.
We compare measurement sensitivities obtained with coherent probing and quantum-enhanced probing of the mechanical motion, i.e. the coherent probe field carries vacuum states and quadrature squeezed vacuum states at sideband frequencies, respectively. We find that quantum-enhanced probing provides little to no improvement in motion sensing for resonators in the unresolved sideband regime but may significantly increase measurement sensitivities for resonators in the resolved sideband regime.
Language: | English |
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Year: | 2015 |
Pages: | 107-114 |
ISSN: | 15213889 and 00033804 |
Types: | Preprint article and Journal article |
DOI: | 10.1002/andp.201400171 |
ORCIDs: | Hoff, Ulrich Busk and Andersen, Ulrik Lund |
Cavity optomechanics FORCE GROUND-STATE LIGHT MOTION OSCILLATOR PHYSICS, SHOT-NOISE STANDARD QUANTUM LIMIT quantum-enhanced sensitivity quantum‐enhanced sensitivity squeezed light standard quantum limit