Physics – Quantum Physics
Scientific paper
2005-12-29
Phys. Rev. A 74:380114 (2006)
Physics
Quantum Physics
14 pages (4 figures) submitted to Phys. Rev. A
Scientific paper
10.1103/PhysRevA.74.013814
The response to a probe laser beam of a suspended, misaligned and detuned optical cavity is examined. A five degree of freedom model of the fluctuations of the longitudinal and transverse mirror coordinates is presented. Classical and quantum mechanical effects of radiation pressure are studied with the help of the optical stiffness coefficients and the signals provided by an FM sideband technique and a quadrant detector, for generic values of the product $\varpi \tau $ of the fluctuation frequency times the cavity round trip. A simplified version is presented for the case of small misalignments. Mechanical stability, mirror position entanglement and ponderomotive squeezing are accommodated in this model. Numerical plots refer to cavities under test at the so-called Pisa LF facility.
Cella Giancarlo
D'Auria Virginia
Di Virgilio Angela
Penna P. La
Porzio Alberto
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