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Quantum locking of mirrors in interferometers

Jean-Michel Courty·A. Heidmann·M. Pinard
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Abstract

We show that quantum noise in very sensitive interferometric measurements such as gravitational-waves detectors can be drastically modified by quantum feedback. We present a new scheme based on active control to lock the motion of a mirror to a reference mirror at the quantum level. This simple technique allows to reduce quantum effects of radiation pressure and to greatly enhance the sensitivity of the detection.

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Jean-Michel Courty, A. Heidmann, M. Pinard. 2003-02-26. Quantum locking of mirrors in interferometers. https://doi.org/10.1103/physrevlett.90.083601

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