Nonthermal fixed points: Effective weak coupling for strongly correlated systems far from equilibrium

被引：199

作者：

Berges, Juergen ^{[1
,2
]}

Rothkopf, Alexander ^{[3
]}

Schmidt, Jonas ^{[4
]}

机构：

[1] Tech Univ Darmstadt, Inst Nucl Phys, D-64285 Darmstadt, Germany

[2] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

[3] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[4] DESY, D-22603 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.101.041603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Strongly correlated systems far from equilibrium can exhibit scaling solutions with a dynamically generated weak coupling. We show this by investigating isolated systems described by relativistic quantum field theories for initial conditions leading to nonequilibrium instabilities, such as parametric resonance or spinodal decomposition. The nonthermal fixed points prevent fast thermalization if classical-statistical fluctuations dominate over quantum fluctuations. We comment on the possible significance of these results for the heating of the early Universe after inflation and the question of fast thermalization in heavy-ion collision experiments.

引用

页数：4

共 15 条

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

Aarts, G ;

Ahrensmeier, D ;

Baier, R ;

Berges, J ;

Serreau, J .

PHYSICAL REVIEW D, 2002, 66 (04)

[2] Classical aspects of quantum fields far from equilibrium [J].

Aarts, G ;

Berges, J .

PHYSICAL REVIEW LETTERS, 2002, 88 (04) :416031-416034

[3] Exact and truncated dynamics in nonequilibrium field theory [J].

Aarts, G ;

Bonini, GF ;

Wetterich, C .

PHYSICAL REVIEW D, 2001, 63 (02)

[4] QCD plasma instabilities: The non-Abelian cascade [J].

Arnold, P ;

Moore, GD .

PHYSICAL REVIEW D, 2006, 73 (02)

[5] Apparent thermalization due to plasma instabilities in the quark-gluon plasma [J].

Arnold, P ;

Lenaghan, J ;

Moore, GD ;

Yaffe, LG .

PHYSICAL REVIEW LETTERS, 2005, 94 (07)

[6] Tachyonic preheating using 2PI-1/N dynamics and the classical approximation [J].

Arrizabalaga, A ;

Smit, J ;

Tranberg, A .

JOURNAL OF HIGH ENERGY PHYSICS, 2004, (10) :317-349

[7] Parametric resonance in quantum field theory [J].

Berges, J ;

Serreau, J .

PHYSICAL REVIEW LETTERS, 2003, 91 (11)

[8] Controlled nonperturbative dynamics of quantum fields out of equilibrium [J].

Berges, J .

NUCLEAR PHYSICS A, 2002, 699 (3-4) :847-886

[9] Thermalization of fermionic quantum fields [J].

Berges, J ;

Borsányi, S ;

Serreau, J .

NUCLEAR PHYSICS B, 2003, 660 (1-2) :51-80

[10] Bottom-up isotropization in classical-statistical lattice gauge theory [J].

Berges, Juergen ;

Scheffler, Sebastian ;

Sexty, Denes .

PHYSICAL REVIEW D, 2008, 77 (03)

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