Spin-boson dynamics: A unified approach from weak to strong coupling

URN to cite this document:: urn:nbn:de:bvb:355-epub-91249
DOI to cite this document:: 10.5283/epub.9124

Nesi, Francesco ; Paladino, Elisabetta ; Thorwart, Michael ; Grifoni, Milena

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Date of publication of this fulltext: 21 Aug 2009 08:53

Alternative links to fulltext:Arxiv

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Abstract

We present a novel approximation scheme to describe the influence of a harmonic bath on the dynamics of a two-level particle over almost the whole regime of temperatures and coupling to the environment, for a wide class of bath spectral densities. Starting from the exact path-integral solution for the two-level system density matrix, effective intra-blip correlations are fully included, while ...