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Article Dans Une Revue Physical Review Letters Année : 2006

Light transport in cold atoms and thermal decoherence

Résumé

By using the coherent backscattering interference effect, we investigate experimentally and theoretically how coherent transport of light inside a cold atomic vapour is affected by the residual motion of atomic scatterers. As the temperature of the atomic cloud increases, the interference contrast dramatically decreases emphazising the role of motion-induced decoherence for resonant scatterers even in the sub-Doppler regime of temperature. We derive analytical expressions for the corresponding coherence time.
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Dates et versions

hal-00021119 , version 1 (17-03-2006)

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Guillaume Labeyrie, Dominique Delande, Robin Kaiser, Christian Miniatura. Light transport in cold atoms and thermal decoherence. Physical Review Letters, 2006, 97 (1), pp.013004. ⟨10.1103/PhysRevLett.97.013004⟩. ⟨hal-00021119⟩
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