Quantum theory of fluctuations in a cold damped accelerometer

Details Quantum theory of fluctuations in a cold damped accelerometer Quantum theory of fluctuations in a cold damped accelerometer

1999-04-19

arxiv.org/abs/quant-ph/9904073v2

Eur.Phys.J. D8 (2000) 101-110

Physics

Quantum Physics

10 pages, 6 figures, RevTeX; Minor changes

Scientific paper

We present a quantum network approach to real high sensitivity measurements. Thermal and quantum fluctuations due to active as well as passive elements are taken into account. The method is applied to the analysis of the capacitive accelerometer using the cold damping technique, developed for fundamental physics in space by ONERA and the ultimate limits of this instrument are discussed. It is confirmed in this quantum analysis that the cold damping technique allows one to control efficiently the test mass motion without degrading the noise level.

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