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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 8: Machine Learning in Dynamics and Statistical Physics II (joint session DY/SOE)
SOE 8.3: Talk
Tuesday, March 19, 2024, 10:00–10:15, BH-N 243
Coarse-graining non-equilibrium systems with machine learning: from conceptual challenges to new approaches — •Patrick Egenlauf1,2 and Miriam Klopotek2 — 1University of Stuttgart, Interchange Forum for Reflecting on Intelligent Systems, IRIS3D project, Stuttgart, Germany — 2University of Stuttgart, Stuttgart Center for Simulation Science, SimTech Cluster of Excellence EXC 2075, Stuttgart, Germany
Machine learning (ML) was previously shown to effectively coarse-grain configurations of many-body systems. We want to investigate ML applications to address the dynamic coarse-graining of non-equilibrium many-body systems. Our research aims to advance ML methods while avoiding conventional assumptions. The focus is on time-dependent datasets and their broader implications for understanding causality. We introduce innovative techniques by incorporating general theory, including the time-dependent generalized Langevin equation [1], for building and interpreting time-dependent learning techniques [2]. This provides a distinctive ML perspective that extends to various applications for dynamical systems beyond equilibrium states. This study offers new ways to improve our understanding and manipulation of complex non-equilibrium many-body dynamics using ML.
[1] Schilling, T. (2022). Coarse-grained modelling out of equilibrium. Physics Reports, 972, 1-45.
[2] Nakajima, K., and Fischer, I. (2021). Reservoir Computing. Springer Singapore.
Keywords: Machine learning; Coarse-graining; Non-equilibrium; Time evolution; Causality