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Polarization squeezing of light by single passage through an atomic vapor

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arxiv 1107.3158 v2 pith:RDIU46MF submitted 2011-07-15 quant-ph physics.atom-ph

Polarization squeezing of light by single passage through an atomic vapor

classification quant-ph physics.atom-ph
keywords polarizationcomponentsquantumsqueezingvaporapplicationsatomicbeam
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We have studied relative-intensity fluctuations for a variable set of orthogonal elliptic polarization components of a linearly polarized laser beam traversing a resonant $^{87}$Rb vapor cell. Significant polarization squeezing at the threshold level (-3dB) required for the implementation of several continuous variables quantum protocols was observed. The extreme simplicity of the setup, based on standard polarization components, makes it particularly convenient for quantum information applications.

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