Quantum fluctuations for drag free geodesic motion

Details Quantum fluctuations for drag free geodesic motion Quantum fluctuations for drag free geodesic motion

1999-07-29

arxiv.org/abs/quant-ph/9907095v2

J.Opt.B Quant.Semiclass.Opt. 2 (2000) 90-93

Physics

Quantum Physics

4 pages, 1 figure, RevTeX, minor changes

Scientific paper

10.1088/1464-4266/2/2/304

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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