title: Markovian master equation and thermodynamics of a two-level system in a strong laser field.
abstract: The recently developed technique combining the weak-coupling limit with the Floquet formalism is applied to a model of a two-level atom driven by a strong laser field and weakly coupled to heat baths. First, the case of a single electromagnetic bath at zero temperature is discussed and the formula for resonance fluorescence is derived. The expression describes the well-known Mollow triplet, but its details differ from the standard ones based on additional simplifying assumptions. The second example describes the case of two thermal reservoirs: an electromagnetic one at finite temperature and the second dephasing one, which can be realized as a phononic or buffer gas reservoir. It is shown using the developed thermodynamical approach that the latter system can work in two regimes depending on the detuning sign: a heat pump transporting heat from the dephasing reservoir to an electromagnetic bath or heating both, always at the expense of work supplied by the laser field.
authors: Institute of Theoretical Physics and Astrophysics, University of Gdańsk, Gdańsk, Poland.
authors: Krzysztof
authors: K
authors: Szczygielski
authors: David
authors: D
authors: Gelbwaser-Klimovsky
authors: Robert
authors: R
authors: Alicki
mesh_terms: D003198:Computer Simulation; D007834:Lasers; D008390:Markov Chains; D015233:Models, Statistical; D012542:Scattering, Radiation; D013816:Thermodynamics