{ "id": "cond-mat/9811357", "version": "v1", "published": "1998-11-25T12:06:04.000Z", "updated": "1998-11-25T12:06:04.000Z", "title": "Effective potential for dissipative quantum systems", "authors": [ "A. Cuccoli", "A. Fubini", "A. Rossi", "V. Tognetti", "R. Vaia" ], "comment": "4 pages, 4 postscript figures (embedded by psfig)", "journal": "in \"Path Integrals from peV to TeV - 50 Years from Feynman's paper\", eds. R.Casalbuoni et al. (World Scientific, Singapore, 1999), pag. 160", "categories": [ "cond-mat.stat-mech" ], "abstract": "We consider quantum nonlinear systems with dissipation described within the Caldeira-Leggett model, i.e., by a nonlocal action in the path integral for the density matrix. Approximate classical-like formulas are derived in order to evaluate thermal averages of observables: the cases of linear and nonlinear dissipation are considered, and the framework is extended to the case of many degrees of freedom.", "revisions": [ { "version": "v1", "updated": "1998-11-25T12:06:04.000Z" } ], "analyses": { "keywords": [ "dissipative quantum systems", "effective potential", "quantum nonlinear systems", "evaluate thermal averages", "caldeira-leggett model" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998cond.mat.11357C" } } }