Overview
This research direction focuses on the study of systems out of equilibrium. A recent line concerns the thermodynamic interpretation of stochastic dynamics [dit24,bai24]. The central goal is to connect measurable trajectories, currents and fluctuations with quantities such as entropy production and dissipation.
However, in nonequilibrium systems, in addition to dissipation, time-symmetric features become relevant (traffic, frenesy, dynamical activity, ...). This focus led to the so-called kinetic uncertainty relation [dit19], which is an inequality constraining the precision of observables by the system's average jumping rate.
This research line also included the study of various forms of fluctuation-response relations for systems out of equilibrium (see the review [bai13]).
The approach combines tools from statistical mechanics, stochastic processes and numerical modelling, with applications to driven systems, active matter and complex nonequilibrium dynamics.
Selected papers
[dit24] Variance sum rule for entropy production
Estimating dissipation with a novel approach based on fluctuations.
[bai24] Effective estimation of entropy production with lacking data
Improving the estimation of strong irreversibility with lower bounds.
[dit19] Kinetic Uncertainty Relation
Nonequilibrium inequality known as the "KUR", which complements the "TUR" (Thermodynamic Uncertainty Relation) in bounding the precision of observables in stochastic systems out of equilibrium.
[bai13] An update on nonequilibrium linear response
A review of the approaches to linear response for nonequilibrium systems.