Phase-conjugation in two-level atoms: comparison of quantum interference theory to exact results

O.K. Andersen, D. Lenstra, G. Vemuri

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Abstract

The analytically derived predictions of a recently developed theory on phase conjugate four wave mixing (FWM) in two-level atoms [Phys. Rev. A 60, 1672 (1999)], which interprets many of the signal features as a consequence of quantum interference between the probability amplitudes for photon emission from relevant dressed states, is compared to the results that one obtains from a non-perturbative, numerical calculation of the density matrix equations. The results delineate the regimes and assumptions under which the perturbative results are valid, and it is shown that despite the simplifying assumptions that are invoked for the dressed state theory, many of its predictions are in qualitative agreement with the exact, numerical results.
Original languageEnglish
Pages (from-to)419-427
Number of pages9
JournalOptics Communications
Volume200
Issue number1-6
DOIs
Publication statusPublished - 2001

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