Indisponibilité programmée / Scheduled outage

Nous procéderons à une opération de maintenance le mercredi 12 mars 2025 à 8h00 (CET).

  • Indico sera indisponible durant cette opération.
  • La durée prévisionnelle d'indisponibilité est estimée à une heure.

We will be performing maintenance on Wednesday, March 12, 2025, at 8:00 AM (CET).

  • Indico will be unavailable during this operation.
  • The estimated downtime is one hour.
Séminaires

Entropy and the dynamics of quantum fields

par Stefan Flörchinger (Université Heidelberg)

Europe/Paris
Amphi GALOIS (Subatech IMT Atlantique)

Amphi GALOIS

Subatech IMT Atlantique

Description

There is a fascinating relation between the dynamics of quantum fields and information theory formulated in terms of entropy. While this is well known and understood in thermal equilibrium, the extension to non-equilibrium dynamics is a topic of current research. I will discuss how in quantum field theory entropy results from entanglement between different regions and how local production of entropy is related to dissipation. A local form of the second law of thermodynamics emerges and is the starting point of an effective low energy description in terms of relativistic fluid dynamics. As I will discuss, these ideas find applications in the context of high energy nuclear collisions, hadronization models, and in cosmology.

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