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European Quantum Electronics Conference (EQEC)

Exact theory of spontaneous emission in cavity and new approach to estimation of coupling constants

Vladislav Cheltsov

Published Aug 24, 2005• 0 citations
Publisher
DOI
10.1109/eqec.1994.698247

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The spectrum of spontaneously emitted photons from an atom interacting with a single cavity mode depends on the relative sizes of the mode coupling constant and the cavity loss rate. If the coupling constant is not too large, perturbation theory can he used to show that the atomic linewidth is either increased (enhanced spontaneous emission) or decreased (inhibited spontaneous emission) by the presence of the cavity. When the coupling constant is so large that perturbation theory cannot be used, the spontaneous- emission spectrum forms a doublet, with peaks located at the normal-mode frequencies for the coupled-dipole and cavity-mode oscillators (the so-called "vacuum" Rabi splitting).