A4 Article in conference proceedings
Understanding the dynamics of field theories far from equilibrium (2019)

Boguslavski, K. (2019). Understanding the dynamics of field theories far from equilibrium. In Confinement 2018 : Proceedings of the XIII Quark Confinement and the Hadron Spectrum Conference (Article 136). Sissa Medialab srl. POS Proceedings of Science, 336. https://doi.org/10.22323/1.336.0136

JYU authors or editors

Publication details

All authors or editors: Boguslavski, Kirill

Parent publication: Confinement 2018 : Proceedings of the XIII Quark Confinement and the Hadron Spectrum Conference

Conference:

Place and date of conference: Maynooth University, Ireland, 31.7.-6.8.2018

Journal or series: POS Proceedings of Science

eISSN: 1824-8039

Publication year: 2019

Number in series: 336

Article number: 136

Publisher: Sissa Medialab srl

Publication country: Italy

Publication language: English

DOI: https://doi.org/10.22323/1.336.0136

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/66248

Publication is parallel published: https://arxiv.org/abs/1811.07171

Abstract

In recent years, there have been important advances in understanding the far-from-equilibrium dynamics in different physical systems. In ultra-relativistic heavy-ion collisions, the combination of different methods led to the development of a weak-coupling description of the early-time dynamics. The numerical observation of a classical universal attractor played a crucial role for this. Such attractors, also known as non-thermal fixed points (NTFPs), have been now predicted for different scalar and gauge theories. An important universal NTFP emerges in scalar theories modeling ultra-cold atoms, inflation or dark matter, and its scaling properties have been recently observed in an ultra-cold atom experiment. In this proceeding, recent progress in selected topics of the far-from-equilibrium evolution in these systems will be discussed. A new method to extract the spectral function numerically is a particularly promising tool to better understand their microscopic properties.

Keywords: particle physics; quantum field theory

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 0