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Springer eBooks

Transient Squeezing and Time-Dependent Spectra of a Strongly Driven Three-Level Atom Undergoing Quantum Jumps

S. V. Lawande, Richard D’Souza, Arundhati S. Jayarao

Published Jan 1, 1989• 0 citations
Publisher
DOI
10.1007/978-1-4613-0847-8_119

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We present three additional theoretical signatures of quantum jumps displayed by the behavior of the Mandel Q(T) function, transient squeezing, and the time-dependent spectra, for a Raman system resonantly driven by coherent fields. As in our earlier formalism we assume that one or both of the driving fields are intense and invoke the secular approximation to derive a Markovian master equation for the atomic-density operator. This is then used to obtain analytical expressions for Q(T), transient squeezing parameters, and the time-dependent spectra. These analytical results provide further characteristics of the quantum jumps.
Time-dependent features of the fluorescence radiation from a strongly driven three-level atom in a Raman configuration are studied applying the Eberly-W\'odkiewicz counting-rate definition of the spectrum. Using our earlier formalism, where we assume that one or both of the driving fields are intense, we obtain analytical expressions for the time-dependent fluorescence spectra. We have also studied the influence on the transient spectrum of the initial preparation of the atom in three different dressed states.