Polarization squeezing with cold atoms

Details Polarization squeezing with cold atoms Polarization squeezing with cold atoms

2003-04-03

arxiv.org/abs/quant-ph/0304022v2

Physical Review Letters 91 (2003) 103601

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.91.103601

We study the interaction of a nearly resonant linearly polarized laser beam with a cloud of cold cesium atoms in a high finesse optical cavity. We show theoretically and experimentally that the cross-Kerr effect due to the saturation of the optical transition produces quadrature squeezing on both the mean field and the orthogonally polarized vacuum mode. An interpretation of this vacuum squeezing as polarization squeezing is given and a method for measuring quantum Stokes parameters for weak beams via a local oscillator is developed.

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