Phonon thermal baths: A treatment in terms of reduced models

Publisher Website
Google Scholar
Abstract
We describe a general procedure for building up reduced heatbaths simulating a manybody system of coupled harmonic oscillators. Finite lifetimes of phonons can be taken into account by the appropriate generalization of the Mori formalism that provides the tool for modeling the real phonon reservoir. The related Fokker-Planck equation is also discussed.