Can optical squeezing be generated via polarization self-rotation in a thermal vapour cell?

Details Can optical squeezing be generated via polarization self-rotation in a thermal vapour cell? Can optical squeezing be generated via polarization self-rotation in a thermal vapour cell?

2005-10-21

arxiv.org/abs/quant-ph/0510165v2

Physical Review A 73 023806 (2006)

Physics

Quantum Physics

10 pages, 11 figures, submitted to PRA. Please email author for a PDF file if the article does not appear properly

Scientific paper

10.1103/PhysRevA.73.023806

The traversal of an elliptically polarized optical field through a thermal vapour cell can give rise to a rotation of its polarization axis. This process, known as polarization self-rotation (PSR), has been suggested as a mechanism for producing squeezed light at atomic transition wavelengths. In this paper, we show results of the characterization of PSR in isotopically enhanced Rubidium-87 cells, performed in two independent laboratories. We observed that, contrary to earlier work, the presence of atomic noise in the thermal vapour overwhelms the observation of squeezing. We present a theory that contains atomic noise terms and show that a null result in squeezing is consistent with this theory.

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