Journal Article

Boltzmann Equation for Relativistic Neutral Scalar Field in Non-Equilibrium Thermo Field Dynamics

Yuichi Mizutani and Tomohiro Inagaki

in Progress of Theoretical Physics

Published on behalf of The Physical Society of Japan

Volume 125, issue 5, pages 933-955
Published in print May 2011 | ISSN: 0033-068X
Published online May 2011 | e-ISSN: 1347-4081 | DOI: https://dx.doi.org/10.1143/PTP.125.933
Boltzmann Equation for Relativistic Neutral Scalar Field in Non-Equilibrium Thermo Field Dynamics

More Like This

Show all results sharing these subjects:

  • Classical Mechanics
  • Particles and Fields

GO

Show Summary Details

Preview

A relativistic neutral scalar field is investigated on the basis of the Schwinger-Dyson equation in the non-equilibrium thermo field dynamics. A time evolution equation for a distribution function is obtained from a diagonalization condition for the Schwinger-Dyson equation. An explicit expression of the time evolution equation is calculated in the λφ4 interaction model at the 2-loop level. The Boltzmann equation is derived for the relativistic scalar field. We set a simple initial condition and numerically solve the Boltzmann equation and show the time evolution of the distribution function and the relaxation time.

Journal Article.  0 words. 

Subjects: Classical Mechanics ; Particles and Fields

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. subscribe or login to access all content.