Preprint article · Journal article
Quantum-enhanced micromechanical displacement sensitivity
We report on a hitherto unexplored application of squeezed light: for quantum-enhancement of mechanical transduction sensitivity in microcavity optomechanics. Using a toroidal silica microcavity, we experimentally demonstrate measurement of the transduced phase modulation signal in the frequency range 4–5.8 MHz with a sensitivity −0.72(±0.01) dB below the shot noise level.
This is achieved for resonant probing in the highly undercoupled regime, by preparing the probe in a weak coherent state with phase squeezed vacuum states at sideband frequencies.
Language: | English |
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Year: | 2013 |
Pages: | 1413-1415 |
ISSN: | 15394794 and 01469592 |
Types: | Preprint article and Journal article |
DOI: | 10.1364/OL.38.001413 |
ORCIDs: | Hoff, Ulrich Busk and Andersen, Ulrik Lund |