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Enhancement and suppression of spontaneous emission and light scattering by quantum degeneracy

A. Gorlitz, A. P. Chikkatur, W. Ketterle

cond-matarXiv:cond-mat/0008067

Abstract

Quantum degeneracy modifies light scattering and spontaneous emission. For fermions, Pauli blocking leads to a suppression of both processes. In contrast, in a weakly interacting Bose-Einstein condensate, we find spontaneous emission to be enhanced, while light scattering is suppressed. This difference is attributed to many-body effects and quantum interference in a Bose-Einstein condensate.

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