From Effective Hamiltonians to Fluctuation and Dissipation

被引：0

作者：

Philippe Durand

Ivana Paidarová

机构：

[1] Université Paul Sabatier,Laboratoire de Physique Quantique, IRSAMC, UMR 5626 du CNRS

[2] Academy of Sciences of the Czech Republic,J. Heyrovský Institute of Physical Chemistry

来源：

Theoretical Chemistry Accounts | 2006年 / 116卷

关键词：

Effective Hamiltonian; Projection techniques; Green function; Fluctuation; Dissipation; Fano profiles;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Irreversible quantum dynamics is reviewed by means of projected resolvents and effective Hamiltonians. It is shown that for a particular partition the dynamical equations are formally identical to the generalized Langevin equation of non-equilibrium statistical mechanics. Three model applications underline the fundamental role played by fluctuations to study line profiles in spectroscopy and to discuss the relationship between fluctuation and dissipation. A new expression of the parameter q characterizing Fano profiles is presented.

引用

页码：559 / 565

页数：6