Quantum-enhanced micromechanical displacement sensitivity

Hoff, Ulrich B., Harris, Glen I., Madsen, Lars S., Kerdoncuff, Hugo, Lassen, Mikael, Nielsen, Bo M., Bowen, Warwick P. and Andersen, Ulrik L. (2013) Quantum-enhanced micromechanical displacement sensitivity. Optics Letters, 38 9: 1413-1415. doi:10.1364/OL.38.001413

Author Hoff, Ulrich B.
Harris, Glen I.
Madsen, Lars S.
Kerdoncuff, Hugo
Lassen, Mikael
Nielsen, Bo M.
Bowen, Warwick P.
Andersen, Ulrik L.
Title Quantum-enhanced micromechanical displacement sensitivity
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
Publication date 2013-05-01
Sub-type Article (original research)
DOI 10.1364/OL.38.001413
Volume 38
Issue 9
Start page 1413
End page 1415
Total pages 3
Editor Alan E. Willner
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2014
Language eng
Formatted abstract
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.
Keyword Radiation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 20 times in Scopus Article | Citations
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Created: Sun, 16 Jun 2013, 00:20:16 EST by System User on behalf of Engineered Quantum Systems