Speaker
Udo Seifert
(University of Stuttgart)
Description
The thermodynamic uncertainty relation conjectured in 2015
[1] and proven using large deviation theory in 2016 [2]
provides a universal constraint relating mean and dispersion
of any current in a driven system with the overall entropy
production. I will first introduce the basic concepts behind
this relation and then discuss a few of its applications.
Prominent amomg those are a universal model-free bound on
the efficiency of molecular motors [3] and insight into the
current debate whether or not heat engines can approach
Carnot efficiency at finite power [4]. Stronger versions of
this bound require knowledge of the underlying topology and
driving affinities of the network [5].
[1] A. C. Barato and U.S., Phys. Rev. Lett. 114, 158101, 2015
[2] T. R. Gingrich, et al, Phys. Rev. Lett. 116, 120601, 2016
[3] P. Pietzonka, A. C. Barato, and U.S., J. Stat. Mech.,
124004, 2016
[4] P. Pietzonka and U.S., arxiv 1705.05817.
[5] P. Pietzonka, A. C. Barato, and U. Seifert J Phys A, 49,
34LT01, 2016
