Begin forwarded message:From: Raúl Rica <rul@ugr.es>Subject: [noticias] seminario Aljaz GodecDate: 7. April 2025 at 13:37:55 CESTTo: noticias@listas.ugr.esSeminario impartido por Aljaz Godec (Max Planck Institute for Multidisciplinary Sciences, Gottingen, Alemania)
Fecha y hora: Miércoles 9 de abril, 12:10
Lugar: Aula A03 (ubicada en Aulario A de la Facultad de Ciencias)Título: Thermal relaxation asymmetry: from single molecules to hydrodynamic fluctuation
Resumen: According to conventional wisdom, a macroscopic system placed in an environment with a different temperature relaxes (i.e., warms up or cools down) to the temperature of the surroundings. This relaxation is mediated by the flow of heat that is set only by the temperature difference. However, when rapid changes in temperature push a system far from equilibrium, thermal relaxation becomes asymmetric, which was predicted theoretically and recently confirmed experimentally. That is, under quite general conditions, heating is in fact faster than cooling.
I will first introduce the relaxation asymmetry in reversible and detailed-balance violating finite-dimensional systems. Next I will present a rigorous formulation of thermal relaxation in the framework of hydrodynamic fluctuation theory for short- and long-range interacting systems, respectively. I will show that the asymmetry persists in the hydrodynamic limit and that in contrast to finite-dimensions a "true" close-to-equilibrium thermal quench with symmetric heating and cooling at all times does not exist.
Gracias, un saludo
Raúl
-- Raúl A. Rica Alarcón Nanoparticles Trapping Laboratory Department of Applied Physics School of Sciences Universidad de Granada Avda. Fuentenueva s/n 18071, Granada, Spain +34 958240015 (Office) +34 958241000 Ext. 20631 (Lab) nanotlab@ugr.es https://sites.google.com/view/nanotlab -- Cláusula de Confidencialidad: "Este mensaje se dirige exclusivamente a su destinatario y puede contener información privilegiada o confidencial. Si no es Ud. el destinatario indicado, queda notificado de que la utilización, divulgación o copia sin autorización está prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, se ruega lo comunique inmediatamente por esta misma vía y proceda a su destrucción. This message is intended exclusively for its addressee and may contain information that is CONFIDENTIAL and protected by professional privilege. If you are not the intended recipient you are hereby notified that any dissemination, copy or disclosure of this communication is strictly prohibited by law. If this message has been received in error, please immediately notify us via e-mail and delete it"
