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Title: Analytic Solution of the Boltzmann Equation in an Expanding System

Journal Article · · Physical Review Letters
 [1];  [2]; ORCiD logo [1];  [1];  [3]
  1. The Ohio State Univ., Columbus, OH (United States)
  2. McGill Univ., Montreal, QC (Canada); Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. de Sao Paulo, Sao Paulo, SP (Brazil). Inst. de Fısica; Columbia Univ., New York, NY (United States)

For a massless gas with a constant cross section in a homogeneous, isotropically expanding spacetime we reformulate the relativistic Boltzmann equation as a set of nonlinear coupled moment equations. For a particular initial condition this set can be solved exactly, yielding the first analytical solution of the Boltzmann equation for an expanding system. Finally, the nonequilibrium behavior of this relativistic gas can be mapped onto that of a homogeneous, static nonrelativistic gas of Maxwell molecules.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); Natural Sciences and Engineering Research Council of Canada (NSERC); Conselho Nacional de Desenvolvimento Cientıfico e Tecnol´ogico (CNPq); Funda¸cao de Amparo `a Pesquisa do Estado de Sao Paulo (FAPESP)
Grant/Contract Number:
SC0004286; SC0012704
OSTI ID:
1604417
Alternate ID(s):
OSTI ID: 1235607
Journal Information:
Physical Review Letters, Vol. 116, Issue 2; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

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Cited By (13)

The massless Einstein–Boltzmann system with a conformal gauge singularity in an FLRW background journal January 2020
Melting and freeze-out conditions of hadrons in a thermal medium text January 2018
Calculation of power spectrum of the little bangs journal July 2018
Melting and freeze-out conditions of hadrons in a thermal medium journal January 2018
Transport coefficients in ultrarelativistic kinetic theory journal February 2018
Collective classical motion on hyperbolic spacetimes of any dimensions journal July 2019
Entropy Production, Hydrodynamics, and Resurgence in the Primordial Quark-Gluon Plasma from Holography text January 2016
Momentum transport in strongly coupled anisotropic plasmas in the presence of strong magnetic fields text January 2016
Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions text January 2016
Nonlinear dynamics from the relativistic Boltzmann equation in the Friedmann-Lemaître-Robertson-Walker spacetime text January 2016
Causality and existence of solutions of relativistic viscous fluid dynamics with gravity text January 2017
Far-from-equilibrium attractors and nonlinear dynamical systems approach to the Gubser flow text January 2017
The massless Einstein-Boltzmann system with a conformal-gauge singularity in an FLRW background text January 2019

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