Dynamics of the spin-boson model with a structured environment

URN zum Zitieren dieses Dokuments:: urn:nbn:de:bvb:355-epub-94726

Thorwart, M. ; Paladino, E. ; Grifoni, Milena

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Veröffentlichungsdatum dieses Volltextes: 18 Sep 2009 09:14

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We investigate the dynamics of the spin-boson model when the spectral density of the boson bath shows a resonance at a characteristic frequency $\Omega$ but behaves Ohmically at small frequencies. The time evolution of an initial state is determined by making use of the mapping onto a system composed of a quantum mechanical two-state system (TSS) which is coupled to a harmonic oscillator (HO) ...