Bosonic enhancement of spontaneous emission near an interface

Details Bosonic enhancement of spontaneous emission near an interface Bosonic enhancement of spontaneous emission near an interface

2010-11-19

arxiv.org/abs/1011.4428v1

Physics Letters A, 375, (2011), 680-684

Physics

Condensed Matter

Other Condensed Matter

6 pages, 3 figures

Scientific paper

10.1016/j.physleta.2010.11.058

We show how the spontaneous emission rate of an excited two-level atom placed in a trapped Bose-Einstein condensate of ground-state atoms is enhanced by bosonic stimulation. This stimulation depends on the overlap of the excited matter-wave packet with the macroscopically occupied condensate wave function, and provides a probe of the spatial coherence of the Bose gas. The effect can be used to amplify the distance-dependent decay rate of an excited atom near an interface.

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