Quantum variation measurement of a force

The quantum limit for the resolution of a small force using an optical transducer of a displacement with a coherent nonmodulated pump is proved to be less than the standard quantum limit if one measures the quadrature amplitude in the output wave, squeezed by the ponderomotive nonlinearity mechanism...

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Bibliographic Details
Published in:Physics letters. A 1995-05, Vol.201 (4), p.269-274
Main Authors: Vyatchanin, S.P., Zubova, E.A.
Format: Article
Language:English
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Summary:The quantum limit for the resolution of a small force using an optical transducer of a displacement with a coherent nonmodulated pump is proved to be less than the standard quantum limit if one measures the quadrature amplitude in the output wave, squeezed by the ponderomotive nonlinearity mechanism. This squeezing has a spectral dependence and we propose a procedure showing it.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(95)00280-G