Modified Bloch equations in presence of a nonstationary bath

Details Modified Bloch equations in presence of a nonstationary bath Modified Bloch equations in presence of a nonstationary bath

1999-02-11

arxiv.org/abs/physics/9902028v1

The European Physical Journal D, 6 (1999) 415

Physics

Optics

Revtex, 27 pages, 2 ps figures. To appear in European Physical Journal D

Scientific paper

10.1007/s100530050325

Based on the system-reservoir description we propose a simple solvable microscopic model for a nonequilibrium bath. This captures the essential features of a nonstationary quantum Markov process. We establish an appropriate generalization of the fluctuation-dissipation relation pertaining to this process and explore the essential modifications of the Bloch equations to reveal the nonexponential decay of the Bloch vector components and transient spectral broadening in resonance fluorescence. We discuss a simple experimental scheme to verify the theoretical results.

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