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Bibliographic Details
Main Author: Gelis, Francois
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.17668
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Table of Contents:
  • An important question in heavy-ion collisions is how the initial far-from-equilibrium medium evolves and thermalizes while it undergoes a rapid longitudinal expansion. In this presentation, we show how to use the two-particle irreducible (2PI) effective action to address this question, focusing on $ϕ^4$ scalar theory truncated at three loops. We present numerical results for quantities such as the occupation number, the thermal mass, and the number density.