1 June 1983 Departures From The Optical Bloch Equations
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Optical Engineering, 22(3), 223282 (1983). doi:10.1117/12.7973106
It is the aim of the present work to show some departures from the well-known optical Bloch equations usually obtained when the damping of a two-level system driven by a Glauber coherent mode of the radiation field is treated in the Markovian approximation. In particular, we show that for an arbitrary intensity we have a set of 4 n optical Bloch equations which can be reduced to the usual optical Bloch equations when the population of the mode becomes important. A criterion for the quasi-classical evolution can be deduced. Obviously, in both limits of an arbitrarily weak or strong excitation intensity the Mollow's results are obtained. In addition, we do not need here the introduction of a particular form like the plane wave used by Mollow for the corresponding classical field--as the problem is solved explicitly.
A. A. Villaeys, "Departures From The Optical Bloch Equations," Optical Engineering 22(3), 223282 (1 June 1983). https://doi.org/10.1117/12.7973106

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