| Texto completo | |
| Autor(es): |
Torrieri, Giorgio
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | SCIPOST PHYSICS; v. 16, n. 3, p. 18-pg., 2024-03-01. |
| Resumo | |
We argue that one can model deviations from the ensemble average in non-equilibrium statistical mechanics by promoting the Boltzmann equation to an equation in terms of functionals , representing possible candidates for phase space distributions inferred from a finite observed number of degrees of freedom. We find that, provided the collision term and the Vlasov drift term are both included, a gauge-like redundancy arises which does not go away even if the functional is narrow. We argue that this effect is linked to the gauge-like symmetry found in relativistic hydrodynamics [1] and that it could be part of the explanation for the apparent fluid-like behavior in small systems in hadronic collisions and other strongly-coupled small systems [2]. When causality and Lorentz invariance are omitted this problem can be look at via random matrix theory show, and we show that in such a case thermalization happens much more quickly than the Boltzmann equation would infer. We also sketch an algorithm to study this problem numerically. (AU) | |
| Processo FAPESP: | 21/01700-2 - Uma teoria de campo eficaz de equilíbrio relativístico local |
| Beneficiário: | Donato Giorgio Torrieri |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 17/05685-2 - Física hadrônica em colisões nucleares de altas energias |
| Beneficiário: | Jun Takahashi |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |