Abstract
We investigate the dynamics of anN-level system linearly coupled to a field of mass-less bosons at positive temperature. Using complex deformation techniques, we develop time-dependent perturbation theory and study spectral properties of the total Hamiltonian. We also calculate the lifetime of resonances to second order in the coupling.
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Communicated by B. Simon
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Jakšić, V., Pillet, C.A. On a model for quantum friction, II. Fermi's golden rule and dynamics at positive temperature. Commun.Math. Phys. 176, 619–644 (1996). https://doi.org/10.1007/BF02099252
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DOI: https://doi.org/10.1007/BF02099252