Relativistic turbulence: A long way from preheating to equilibrium

被引：170

作者：

Micha, R ^{[1
]}

Tkachev, II

机构：

[1] Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.90.121301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study, both numerically and analytically, the development of equilibrium after preheating. We show that the process is characterized by the appearance of Kolmogorov spectra and the evolution towards thermal equilibrium follows self-similar dynamics. Simplified kinetic theory gives values for all characteristic exponents which are close to what is observed in lattice simulations. The resulting time for thermalization is long, and temperature at thermalization is low, T similar to 100 eV in the simple lambdaPhi(4) inflationary model. Our results allow a straightforward generalization to realistic models.

引用

页数：4

共 47 条

[1] Far-from-equilibrium dynamics with broken symmetries from the 1/N expansion of the 2PI effective action -: art. no. 045008 [J].