Prescaling relaxation to nonthermal attractors
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , |
|---|---|
| Format: | Preprint |
| Publié: |
2023
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866910333251092480 |
|---|---|
| author | Heller, Michal P. Mazeliauskas, Aleksas Preis, Thimo |
| author_facet | Heller, Michal P. Mazeliauskas, Aleksas Preis, Thimo |
| contents | We study how isotropic and homogeneous far-from-equilibrium quantum systems relax to nonthermal attractors, which are of interest for cold atoms and nuclear collisions. We demonstrate that a first-order ordinary differential equation governs the self-similar approach to nonthermal attractors, i.e., the prescaling. We also show that certain natural scaling-breaking terms induce logarithmically slow corrections that prevent the scaling exponents from reaching the constant values during the system's lifetime. We propose that, analogously to hydrodynamic attractors, the appropriate mathematical structure to describe such dynamics is the transseries. We verify our analytic predictions with state-of-the-art 2PI simulations of the large-N vector model and QCD kinetic theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_07545 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Prescaling relaxation to nonthermal attractors Heller, Michal P. Mazeliauskas, Aleksas Preis, Thimo High Energy Physics - Theory Quantum Gases High Energy Physics - Phenomenology Nuclear Theory We study how isotropic and homogeneous far-from-equilibrium quantum systems relax to nonthermal attractors, which are of interest for cold atoms and nuclear collisions. We demonstrate that a first-order ordinary differential equation governs the self-similar approach to nonthermal attractors, i.e., the prescaling. We also show that certain natural scaling-breaking terms induce logarithmically slow corrections that prevent the scaling exponents from reaching the constant values during the system's lifetime. We propose that, analogously to hydrodynamic attractors, the appropriate mathematical structure to describe such dynamics is the transseries. We verify our analytic predictions with state-of-the-art 2PI simulations of the large-N vector model and QCD kinetic theory. |
| title | Prescaling relaxation to nonthermal attractors |
| topic | High Energy Physics - Theory Quantum Gases High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2307.07545 |