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Quantum fluctuations for drag free geodesic motion

Jean-Michel Courty·Serge Reynaud
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Abstract

The drag free technique is used to force a proof mass to follow a geodesic motion. The mass is protected from perturbations by a cage, and the motion of the latter is actively controlled to follow the motion of the proof mass. We present a theoretical analysis of the effects of quantum fluctuations for this technique. We show that a perfect drag free operation is in principle possible at the quantum level, in spite of the back action exerted on the mass by the position sensor.

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Jean-Michel Courty, Serge Reynaud. 1999-12-14. Quantum fluctuations for drag free geodesic motion. https://doi.org/10.1088/1464-4266/2/2/304

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