Forum de Physique Statistique à l'École Normale Supérieure

Next seminar

14 January, Friedrich Huebner, 14h (unusual time)

Circuits as a simple platform for the emergence of hydrodynamics

In this talk, I will demonstrate how hydrodynamic equations can be used to study large-scale phenomena in circuit systems (time-discrete versions of many-body systems). Specifically, I will focus on 1D classical deterministic circuits, but the techniques can be applied to more general settings. 

As opposed to generic systems where hydrodynamics can only be used as an effective description (i.e. the parameters of hydrodynamic theory need to be fixed by experiments/numerics), for some circuit systems it is possible to predict the hydrodynamic equations exactly. I will explain why this happens, and how we can identify those models. I then demonstrate how to use hydrodynamics to analytically (and quantitatively) predict nontrivial effects like the formation of shocks and KPZ super-diffusion.

Based on arxiv:2503.08788

Upcoming seminars

28 Janurary, Mikhail Feigelman 

4 February, Bastien Lapierre

18 February, Max McGinley 

25 March, Laura Foini

1 April, Clément Hongler

8 April, Jean-Noël Fuchs

15 April, Sarah Loos