Vacuum squeezing in atomic media via self-rotation RID A-1272-2007 RID B-9041-2008
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When linearly polarized light propagates through a medium in which elliptically polarized light would undergo self-rotation, squeezed vacuum can appear in the orthogonal polarization. A simple relationship between self-rotation and the degree of vacuum squeezing is developed. Taking into account absorption, we find the optimum conditions for squeezing in any medium that can produce self-rotation. We then find analytic expressions for the amount of vacuum squeezing produced by an atomic vapor when light is near-resonant with a transition between various low-angular-momentum states. Finally, we consider a gas of multilevel Rb atoms, and analyze squeezing for light tuned near the D lines under realistic conditions.
DescriptionJournals published by the American Physical Society can be found at http://publish.aps.org/
SubjectELECTROMAGNETICALLY INDUCED TRANSPARENCY