Rényi entropy of the totally asymmetric exclusion process

Condensed Matter lunchtime seminar

Rényi entropy of the totally asymmetric exclusion process

  • Event time: 1:00pm until 2:00pm
  • Event date: 30th October 2017
  • Speaker: (School of Physics & Astronomy, University of Edinburgh)
  • Location: Room 2511,

Event details

The physics of equilibrium systems are well understood under the universal framework of thermodynamics. Real systems are rarely so convenient, however, and equilibrium is often prevented through chemical potentials, particle currents and temperature gradients.

I will discuss the totally asymmetric exclusion process, a model that one could consider to be the ‘Ising model’ of nonequilibrium systems. This is an exactly solvable model with no notion of a temperature. In my work I have calculated what is known as a Rényi entropy. This is a generalisation of the usual Shannon entropy, that takes a unique form for equilibrium systems. In this nonequilibrium case we find a different form, suggesting a fundamental difference between equilibrium and nonequilibrium probability distributions.

About Condensed Matter lunchtime seminars

This is a weekly series of informal talks given primarily by members of the soft condensed matter and statistical mechanics groups, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..

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