Bonn 2010 – wissenschaftliches Programm

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AGjDPG: Arbeitsgruppe junge DPG

AGjDPG 1: Moderne Aspekte der Relativitätstheorie (gemeinsam mit GR)

AGjDPG 1.1: Hauptvortrag

Montag, 15. März 2010, 09:10–09:55, JUR K

Thermodynamics and Brownian motion in special relativity — •Jörn Dunkel1, Peter Hänggi2, and Stefan Hilbert31Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom — 2Institut für Physik, Universität Augsburg, Universitätsstrasse 1, D-86135 Augsburg, Germany — 3Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany

The unification of relativity and thermodynamics has been a subject of considerable debate over the last 100 years. The reasons for this are twofold: (i) Thermodynamic variables are nonlocal quantities and, thus, single out a preferred class of hyperplanes in spacetime. (ii) There exist different, seemingly equally plausible ways of defining heat and work in relativistic systems. These ambiguities led, for example, to various proposals for the Lorentz transformation law of temperature. Traditional isochronous formulations of relativistic thermodynamics are neither theoretically satisfactory nor experimentally feasible. We will discuss how these deficiencies can be resolved by defining thermodynamic quantities with respect to the backward-lightcone of an observation event [1]. The second part of the talk concerns the question how Brownian motion processes can be generalized within the framework of special relativity [2].

[1] J. Dunkel, P. Hänggi and S. Hilbert, Nature Physics 5:741, 2009

[2] J. Dunkel and P. Hänggi, Physics Reports 471(1): 1, 2009.

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