Speaker
Klaus Kroy
(University of Leipzig)
Description
Symmetries constrain dynamics. We test this fundamental
physical principle, experimentally and by molecular dynamics
simulations, for a hot Janus swimmer operating far from
thermal equilibrium. Our results establish scalar and
vectorial steady-state fluctuation theorems and a
thermodynamic uncertainty relation that link the fluctuating
particle current to its virtual entropy production at an
effective temperature. A Markovian minimal model elucidates
the underlying non-equilibrium physics.
Gianmaria Falasco, Richard Pfaller, Andreas P. Bregulla,
Frank Cichos, and Klaus Kroy, Exact symmetries in the
velocity fluctuations of a hot Brownian swimmer, Phys. Rev.
E 94, 030602(R)
