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Type: Artigo de periódico
Title: Dynamics Of Population Of A Four-level Atom Due To One- And Three-photon Processes
Author: Sharma M.P.
Roversi J.A.
Abstract: The Schrödinger equation in the rotating-wave approximation has been solved nonperturbatively to study the temporal behavior of the occupation probabilities of different levels of a four-level atom interacting with four arbitrarily intense laser fields, such that the frequency of one of them equals the sum of the other three. The three-photon-excitation population dynamics, which is already complex, is strongly modified by one-photon excitation and detunings. Under certain conditions the three-photon excitation traps the population in the state initially populated; the population starts flowing into other states when one-photon excitation is also operative. © 1984 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.29.3264
Date Issue: 1984
Appears in Collections:Unicamp - Artigos e Outros Documentos

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