activity
20232026
most citedPhase diagram and specific heat of a nonequilibrium Curie-Weiss model

5 citations · 16 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.stat-mech2026

An agitated oscillator chain

Aaron Beyen, Christian Maes, Ion Santra

Reduced dynamical descriptions for spatially extended systems in contact with a nonequilibrium medium give essential information about extensions of fluctuation-dissipation relatio…

cond-mat.stat-mech2026

A Rayleigh criterion for mechanical instability: inducing activity by chemo-mechanical coupling

Aaron Beyen, Francesco Casini, Christian Maes

Instabilities in thermodynamic systems are often undesirable, as they can lead to loss of control or even catastrophic behavior. Yet, the same mechanisms can also generate rich non…

cond-mat.stat-mech2025

Quasistatic response for nonequilibrium processes: evaluating the Berry potential and curvature

Aaron Beyen, Faezeh Khodabandehlou, Christian Maes

We investigate how introducing slow, time-dependent perturbations to a steady, nonequilibrium process alters the expected (excess) values of important observables, such as the dyna…

cond-mat.stat-mech2025★ 3 cited

Coupling an elastic string to an active bath: the emergence of inverse damping

Aaron Beyen, Christian Maes, Ji-Hui Pei

We consider a slow elastic string with Klein-Gordon dynamics coupled to a bath of run-and-tumble particles. We derive and solve the induced Langevin-Klein-Gordon string dynamics wi…

cond-mat.stat-mech2024

Noether's theorem applied to GENERIC

Aaron Beyen, Christian Maes

The last decades have seen growing interest in connecting principles of thermodynamics with methods from analytical mechanics. The thermodynamic formalism has become an inspiring f…

cond-mat.stat-mech2024★ 3 cited

First part of Clausius heat theorem in terms of Noether's theorem

Aaron Beyen, Christian Maes

After Helmholtz, the mechanical foundation of thermodynamics included the First Law , and the first part of the Clausius heat theorem . The res…

cond-mat.stat-mech2024★ 2 cited

Entropy as Noether charge for quasistatic gradient flow

Aaron Beyen, Christian Maes

Entropy increase is fundamentally related to the breaking of time-reversal symmetry. By adding the 'extra dimension' associated with thermodynamic forces, we extend that discrete s…

gr-qc2023★ 3 cited

Dynamical de Sitter black holes in a quasi-stationary expansion

Aaron Beyen, Efe Hamamcı, Kasper Meerts +1

We revisit and improve the analytic study arXiv:1804.03462 of spherically symmetric but dynamical black holes in Einstein's gravity coupled to a real scalar field. We introduce a s…

cond-mat.stat-mech2023★ 5 cited

Phase diagram and specific heat of a nonequilibrium Curie-Weiss model

Aaron Beyen, Christian Maes, Irene Maes

Adding activity or driving to a thermal system may modify its phase diagram and response functions. We study that effect for a Curie-Weiss model where the thermal bath switches rap…