Phys. Rev. A 66, 043815 (2002) [10 pages]Vacuum squeezing in atomic media via self-rotationReceived 14 November 2001; revised 16 July 2002; published 30 October 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.043815
DOI:
10.1103/PhysRevA.66.043815
PACS:
42.50.Dv, 42.50.Gy, 42.50.Ar, 32.60.+i
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