Phys. Rev. A 69, 043802 (2004) [6 pages]Spontaneous emission of an excited atom in a random absorbing mediumReceived 18 August 2003; published 1 April 2004 The problem of spontaneous emission of an excited atom inside a random medium formed by randomly distributed dipoles is theoretically discussed by explicitly calculating the decay rate of the atom. After averaging over all the density fluctuations of the medium, we obtain an analytical expression of the decay rate in the low-density limit, which shows that inside a random medium the relaxation of an excited state is enhanced due to the density-fluctuation correlations of the random medium. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.043802
DOI:
10.1103/PhysRevA.69.043802
PACS:
42.50.Nn, 12.20.Ds
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