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Izvestiya of Saratov University. Physics, 2011, Volume 11, Issue 1, Pages 10–14
DOI: https://doi.org/10.18500/1817-3020-2011-11-1-10-14
(Mi isuph93)
 

Physics

Non-stationary coherent population trapping in frequency-modulated fields

V. L. Derbova, I. L. Plastunb, A. A. Orudjevb

a Saratov State University
b Yuri Gagarin State Technical University of Saratov
References:
Abstract: Coherent population trapping (CPT) resonance formation is modeled numerically in a three-level L-system with one of the near-resonance fields being frequency-modulated. The model is based on density matrix equations in RW approximation with atomic relaxation properly taken into account. Slow modulation is shown to be equivalent to CW excitation with the frequency changed point by point. As the modula tion period approaches the relaxation times, the delayed response of the system is shown to cause the CPT resonance shift and reshaping, as well as the appearance of transient oscillations of the energy level populations.
Keywords: coherent population trapping, L-system, frequency modulation, density matrix, non-stationary behavior, energy level populations.
Document Type: Article
UDC: 535.345.1
Language: Russian
Citation: V. L. Derbov, I. L. Plastun, A. A. Orudjev, “Non-stationary coherent population trapping in frequency-modulated fields”, Izv. Sarat. Univ. Physics, 11:1 (2011), 10–14
Citation in format AMSBIB
\Bibitem{DerPlaOru11}
\by V.~L.~Derbov, I.~L.~Plastun, A.~A.~Orudjev
\paper Non-stationary coherent population trapping in frequency-modulated fields
\jour Izv. Sarat. Univ. Physics
\yr 2011
\vol 11
\issue 1
\pages 10--14
\mathnet{http://mi.mathnet.ru/isuph93}
\crossref{https://doi.org/10.18500/1817-3020-2011-11-1-10-14}
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