Skip to main content
Go to the home page of the European Commission (opens in new window)
English en
CORDIS - EU research results
CORDIS

Reduced Models for Motion in Fluctuating Nonequilibrium Media: Evaluating Energy Transport and Predicting Transition Rates in Steadily Driven Systems

Project description

Advancing the study of fluctuating non-equilibrium media

Non-equilibrium media are systems that lack thermodynamic equilibrium and exhibit constantly changing properties. Studying them could lead to breakthroughs in fields that rely on materials or systems with fluid, dynamic behaviour. Supported by the Marie Skłodowska-Curie Actions programme, the RedNeq project will develop simplified yet powerful models of non-equilibrium media, including suspensions of active matter or driven particles. It will benchmark the fluctuation dynamics of test particles in these environments, using general fluctuation-dissipation relations to analyse probe behaviour and gain deeper insights into the underlying physics.

Objective

The project RedNeq aims for powerful reduced descriptions of nonequilibrium media, including suspensions of active matter or of steadily driven particles, by benchmarking the fluctuation dynamics of test particles immersed in them. The first goal is to characterize the dynamics of these probes via extended and general Fluctuaton-Dissipation relations, which can be treated as a recipe for writing Langevin equations for probes in nonequilibrium baths. That reduced dynamical description of nonequilibria is essential for the study of at least two other classes of phenomena that are envisioned in RedNeq: (i) Energy and particle transport between nonequilibrium baths, as relevant in Physics of Life systems such as biological power houses, molecular motors and bio-engines more generally; (ii) Metastability in and around steady nonequilibria from effective nonequilibrium reaction-rate formulae, as for example important in the evaluation of dynamical large deviations, first-passage times and tipping points.
The focus is theoretical and foundational for the construction of nonequilibrium statistical mechanics and soft condensed matter, with the core models, techniques, and methodologies being from stochastic processes, graph theory and path-space integration. The results of the project will be closely aligned and helpful for the ongoing biophysics ands soft matter experiments involving calorimetry and microrheology, since it will provide generalized guidlines and ready to use formulas for noise friction relations, athermal energy conductivities, and transition rates, when dealing with nonequilibrium baths.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

See all projects funded under this funding scheme

Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

See all projects funded under this call

Coordinator

KATHOLIEKE UNIVERSITEIT LEUVEN
Net EU contribution
€ 200 400,00
Address
OUDE MARKT 13
3000 Leuven
Belgium
Region
Vlaams Gewest Prov. Vlaams-Brabant Arr. Leuven
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data