Entropy Production in Gluodynamics with Kadanoff-Baym equation

• Nishiyama A.

  Yukawa Institute for Theoretical Physics, Kyoto University

Abstract

In this paper we have written the KB equation for gluodynamics in temporal axial gauge. As an interaction we have adopted leading order self-energy of coupling expansion. Nextwe have introduced kinetic entropy current and showed the H-theorem for the off-shell dynamics in analytical calculation in order to confirm whether leading order self-energy (which contributes to such as g↔gg) contributes to thermalization of the system. Finally we have given numerical analyses. We find that entropy production and resultant local thermalization occurs due to the given off-shell processes. This numerical result is consistent with analytic proof of H-theorem. These off-shell effects have been neglected in normal on-shell approaches. They might play a significant role in the early thermalization of the glasma and help the understanding of heavy ion collisions. Our next step is to simulate KB equation in 3+1 dimensions with fine tuning of initial condition of glasma.

Journal

• Soryushiron Kenkyu Electronics

  Soryushiron Kenkyu Electronics 118 (4), D156-D158, 2011

  Soryushiron Kenkyu Editorial Office

Details

• CRID: 1390001204071833984
• NII Article ID: 110008460605
• NII Book ID: AN00135266
• DOI: 10.24532/soken.118.4_d156
• ISSN: 24332895
• ISSN: 03711838
• NDL BIB ID: 10982704
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10982704
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed