Quantum limitations and back action evading measurements in classical force and rotation detection

A. B. Matsko; S. P. Vyatchanin; A. A. Savchenkov; S. Williams

doi:10.1117/12.2515797

1 March 2019 Quantum limitations and back action evading measurements in classical force and rotation detection

A. B. Matsko, S. P. Vyatchanin, A. A. Savchenkov, S. Williams

Proceedings Volume 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology; 109340V (2019) https://doi.org/10.1117/12.2515797
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

We theoretically study both the technical and the fundamental quantum limitations of the sensitivity of a resonant optical gyroscope based on a high finesse optical cavity. We show that the quantum back action associated with the resonantly enhanced optical cross and self-phase modulation results in the nonlinear optics-mediated standard quantum limit (SQL) of the angle random walk of the gyroscope. We also found that the measurement sensitivity of a generic optical gyroscope is fundamentally limited due to the opto-mechanical properties of the device. Ponderomotive action of the light interrogating the gyroscope cavity leads to the opto-mechanical SQL of the rotation angle detection. The uncorrelated quantum fluctuations of power of clockwise and counterclockwise light waves result in optical power-dependent uncertainty of the angular gyroscope position.

Conference Presentation

Citation Download Citation

A. B. Matsko, S. P. Vyatchanin, A. A. Savchenkov, and S. Williams "Quantum limitations and back action evading measurements in classical force and rotation detection", Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109340V (1 March 2019); https://doi.org/10.1117/12.2515797

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