27 September 2015 to 3 October 2015
Kobe, Fashion Mart, Japan
Japan timezone

Analytical solution of the nonlinear relativistic Boltzmann equation in the early universe and the thermalization of expanding systems

29 Sept 2015, 16:30
2h
Exhibition space 3 & 4

Exhibition space 3 & 4

Board: 0314
Poster Initial State Physics and Approach to Equilibrium Poster Session

Speaker

Jorge Noronha (University of Sao Paulo)

Description

In this talk we present a general method for computing exactly the nonlinear collision term of the relativistic Boltzmann equation for a homogeneous and isotropic system [1]. This is used to find the first full analytical solution of the nonlinear Boltzmann equation for an expanding system corresponding to the primordial matter in the early universe. This solution is used to investigate (in an analytical manner) how thermalization is reached in rapidly expanding kinetic systems. We also determine whether this expanding system displays a nontrivial scaling solution corresponding to a nonthermal fixed point. Reference: [1] D. Bazow, G. S. Denicol, U. Heinz, M. Martinez, and J. Noronha, "Analytical solution of the nonlinear relativistic Boltzmann equation in the early universe and the thermalization of expanding systems", to appear.

Primary author

Jorge Noronha (University of Sao Paulo)

Presentation materials