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The damped driven two-level atom

✍ Scribed by B.R Mollow; M.M Miller

Publisher
Elsevier Science
Year
1969
Tongue
English
Weight
751 KB
Volume
52
Category
Article
ISSN
0003-4916

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✦ Synopsis

Equations are derived for the time evolution of the reduced density operator for a driven two-level atom which is damped by its coupling to a (zero-temperature) bath. Explicit solutions are obtained for the case in which the driving field oscillates harmonically. The effect of field statistics is discussed. It is shown that the solutions depend upon field correlation functions of arbitrarily high order, except for very weak or very broadband fields, for which the solutions depend upon the first order field correlation function alone.

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Equations are derived for the time evolution of the reduced density operator for an (N + 1 J-state atom which is damped by its coupling to a finite-temperature boson bath. General formal solutions are discussed in the limit of low temperature. Exact solutions are given for the decay of ap level in a