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Stationary light and Bose-Einstein Condensation of Slow-Light Polaritons

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Abstract

The generation of stationary distributions of light with three-dimensional confinement is discussed and a novel scheme for Bose-Einstein condensation of the associated quasi-particles, dark-state polaritons (DSP), is proposed. DSPs are created in the Raman interaction of laser fields with atoms and are the basis of ultra-slow, stopped, and stationary light. Stationary DSPs have a quadratic dispersion profile with very small and variable effective mass and have a long intrinsic lifetime. Due to the small mass the corresponding condensation temperature can be many orders of magnitude higher than that of atoms. After introducing stationary dark-state polaritons their incoherent generation and thermalization is discussed and conditions for condensation analyzed. Finally potential methods for an experimental observation of the condensation will be put forward.

© 2008 Optical Society of America

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