Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Meibohm, Jan"'
Autor:
Meibohm, Jan, Klapp, Sabine H. L.
We determine the asymptotic relaxation rate of a Brownian particle in a harmonic potential perturbed by quenched Gaussian disorder, a simplified model for rugged energy landscapes in complex systems. Depending on the properties of the disorder, we sh
Externí odkaz:
http://arxiv.org/abs/2407.20101
We explore the critical properties of the recently discovered finite-time dynamical phase transition in the non-equilibrium relaxation of Ising magnets. The transition is characterized by a sudden switch in the relaxation dynamics and it occurs at a
Externí odkaz:
http://arxiv.org/abs/2403.10505
Autor:
Meibohm, Jan, Esposito, Massimiliano
We prove a linear stability-dissipation relation (SDR) for $q$-state Potts models driven far from equilibrium by a nonconservative force. At a critical coupling strength, these models exhibit a synchronisation transition from a decoherent into a sync
Externí odkaz:
http://arxiv.org/abs/2401.14982
Autor:
Meibohm, Jan, Esposito, Massimiliano
We study driven $q$-state Potts models with thermodynamically consistent dynamics and global coupling. For a wide range of parameters, these models exhibit a dynamical phase transition from decoherent oscillations into a synchronised phase. Starting
Externí odkaz:
http://arxiv.org/abs/2401.14980
Publikováno v:
Phys. Rev. Fluids 8, 024305 (2023)
Caustic singularities of the spatial distribution of particles in turbulent aerosols enhance collision rates and accelerate coagulation. Here we investigate how and where caustics form at weak particle inertia, by analysing a three-dimensional Gaussi
Externí odkaz:
http://arxiv.org/abs/2207.14190
Autor:
Meibohm, Jan, Esposito, Massimiliano
Publikováno v:
New J. Phys. 25 023034 (2023)
We study the time evolution of thermodynamic observables that characterise the dissipative nature of thermal relaxation after an instantaneous temperature quench. Combining tools from stochastic thermodynamics and large-deviation theory, we develop a
Externí odkaz:
http://arxiv.org/abs/2205.10311
Autor:
Meibohm, Jan, Esposito, Massimiliano
Publikováno v:
Phys. Rev. Lett. 128, 110603 (2022)
We uncover a finite-time dynamical phase transition in the thermal relaxation of a mean-field magnetic model. The phase transition manifests itself as a cusp singularity in the probability distribution of the magnetisation that forms at a critical ti
Externí odkaz:
http://arxiv.org/abs/2111.07681
Publikováno v:
Phys. Rev. E 104, 032105 (2021)
In a recent Letter [A. Lapolla and A. Godec, Phys. Rev. Lett. 125, 110602 (2020)], thermal relaxation was observed to occur faster from cold to hot (heating) than from hot to cold (cooling). Here we show that overdamped diffusion in anharmonic potent
Externí odkaz:
http://arxiv.org/abs/2107.07894
Autor:
Meibohm, Jan, Pandey, Vikash, Bhatnagar, Akshay, Gustavsson, Kristian, Mitra, Dhrubaditya, Perlekar, Prasad, Mehlig, B.
Publikováno v:
Phys. Rev. Fluids 6 (2021) L062302
The dynamics of small, yet heavy, identical particles in turbulence exhibits singularities, called caustics, that lead to large fluctuations in the spatial particle-number density, and in collision velocities. For large particle, inertia the fluid ve
Externí odkaz:
http://arxiv.org/abs/2012.08424
Autor:
Meibohm, Jan, Pawlowski, Jan M.
We study the consistency of dynamical fermionic matter with the asymptotic safety scenario of quantum gravity using the functional renormalisation group. Since this scenario suggests strongly coupled quantum gravity in the UV, one expects gravity-ind
Externí odkaz:
http://arxiv.org/abs/1601.04597