Hydrodynamic approach to boost invariant free streaming

We consider a family of exact boost invariant solutions of the transport equation for free-streaming massless particles, where the one-particle distribution function is defined in terms of a function of a single variable. The evolution of second and third moments of the one-particle distribution fun...

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Autor principal: Calzetta, E.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15507998_v92_n4_p_Calzetta
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_15507998_v92_n4_p_Calzetta2023-10-03T16:25:14Z Hydrodynamic approach to boost invariant free streaming Calzetta, E. We consider a family of exact boost invariant solutions of the transport equation for free-streaming massless particles, where the one-particle distribution function is defined in terms of a function of a single variable. The evolution of second and third moments of the one-particle distribution function [the second moment being the energy momentum tensor (EMT) and the third moment the nonequilibrium current (NEC)] depends only on two moments of that function. Given those two moments, we show how to build a nonlinear hydrodynamic theory which reproduces the early time evolution of the EMT and the NEC. The structure of these theories may give insight on nonlinear hydrodynamic phenomena on short time scales. © 2015 American Physical Society. Fil:Calzetta, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v92_n4_p_Calzetta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We consider a family of exact boost invariant solutions of the transport equation for free-streaming massless particles, where the one-particle distribution function is defined in terms of a function of a single variable. The evolution of second and third moments of the one-particle distribution function [the second moment being the energy momentum tensor (EMT) and the third moment the nonequilibrium current (NEC)] depends only on two moments of that function. Given those two moments, we show how to build a nonlinear hydrodynamic theory which reproduces the early time evolution of the EMT and the NEC. The structure of these theories may give insight on nonlinear hydrodynamic phenomena on short time scales. © 2015 American Physical Society.
format JOUR
author Calzetta, E.
spellingShingle Calzetta, E.
Hydrodynamic approach to boost invariant free streaming
author_facet Calzetta, E.
author_sort Calzetta, E.
title Hydrodynamic approach to boost invariant free streaming
title_short Hydrodynamic approach to boost invariant free streaming
title_full Hydrodynamic approach to boost invariant free streaming
title_fullStr Hydrodynamic approach to boost invariant free streaming
title_full_unstemmed Hydrodynamic approach to boost invariant free streaming
title_sort hydrodynamic approach to boost invariant free streaming
url http://hdl.handle.net/20.500.12110/paper_15507998_v92_n4_p_Calzetta
work_keys_str_mv AT calzettae hydrodynamicapproachtoboostinvariantfreestreaming
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