Quantum locking of mirrors in interferometric measurements

Details Quantum locking of mirrors in interferometric measurements Quantum locking of mirrors in interferometric measurements

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21.1053h&link_type=abstract

Classical and Quantum Gravity, Volume 21, Issue 5, pp. S1053-S1058 (2004).

Physics

1

Scientific paper

We discuss the use of active control to reduce mirror position fluctuations at the quantum level. We have shown in a recent experiment that it is possible to reduce the thermal noise of a mirror by measuring and controlling its motion with an optomechanical sensor based on a high-finesse optical cavity. This approach can be extended to lock the mirror motion at the quantum level, and to suppress the quantum effects of radiation pressure in interferometric measurements such as gravitational-wave detectors. The sensitivity improvement is furthermore independent of losses in the interferometer.

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