Regensburg 2010 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 1: Statistical Physics (general) I

DY 1.8: Vortrag

Montag, 22. März 2010, 12:00–12:15, H47

Foundation of Statistical Mechanics under experimentally realistic conditions — •Peter Reimann — Fakultät für Physik, Universität Bielefeld

We demonstrate the equilibration of isolated macroscopic quantum systems, prepared in non-equilibrium mixed states with significant population of many energy levels, and observed by instruments with a reasonably bound working range compared to the resolution limit. Both properties are fulfilled under many, if not all, experimentally realistic conditions. At equilibrium, the predictions and limitations of Statistical Mechanics are recovered. Finally, the imitation of statistical ensembles by pure (zero entropy) states is discussed [1].

[1] P. Reimann, Phys. Rev. Lett. 101, 190403 (2008); 99, 160404 (2007)