Europhysics Letters (EPL)

Dressed Population Trapping for a Two-Level Atom in a Squeezed Vacuum

Jean-Michel Courty, Serge Reynaud

Published Oct 1, 1989• 56 citations

Abstract

We study resonance fluorescence of a two-level atom driven by an intense pump field and coupled to a squeezed reservoir. We show that the population is trapped in one of the two dressed states when some condition is fulfilled. This condition has a purely geometrical interpretation in the spin-1/2 representation. As a consequence of the dressed population trapping, one sideband of the fluorescence triplet disappears. This feature could be used for detecting a squeezed field through its interaction with a two-level atom.

DOI: 10.1209/0295-5075/10/3/009

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