TY - JOUR A1 - Schiefele, Juergen A1 - Henkel, Carsten T1 - Bosonic enhancement of spontaneous emission near an interface JF - Modern physics letters : A, Particles and fields, gravitation, cosmology, nuclear physics N2 - 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. KW - Bose-Einstein condensation KW - Correlation function KW - Bosonic stimulation KW - Superradiance KW - Spontaneous decay KW - Cavity-quantum electrodynamics Y1 - 2011 U6 - https://doi.org/10.1016/j.physleta.2010.11.058 SN - 0375-9601 VL - 375 IS - 3 SP - 680 EP - 684 PB - Elsevier CY - Amsterdam ER -