Transport coefficients from the two particle irreducible effective action

被引:50
作者
Aarts, G [1 ]
Resco, JMM [1 ]
机构
[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
关键词
D O I
10.1103/PhysRevD.68.085009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that the lowest nontrivial truncation of the two-particle irreducible (2PI) effective action correctly determines transport coefficients in a weak coupling or 1/N expansion at leading (logarithmic) order in several relativistic field theories. In particular, we consider a single real scalar field with cubic and quartic interactions in the loop expansion, the O(N) model in the 2PI-1/N expansion, and QED with single and many fermion fields. Therefore, these truncations will provide a correct description, to leading (logarithmic) order, of the long time behavior of these systems, i.e. the approach to equilibrium. This supports the promising results obtained for the dynamics of quantum fields out of equilibrium using 2PI effective action techniques.
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页数:5
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共 34 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]  
Aarts G, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.105010
[4]   Ward identity and electrical conductivity in hot QED [J].
Aarts, G ;
Resco, JMM .
JOURNAL OF HIGH ENERGY PHYSICS, 2002, (11) :447-468
[5]  
Aarts G., UNPUB
[6]   Transport coefficients in high temperature gauge theories, 1. Leading-log results [J].
Arnold, P ;
Moore, GD ;
Yaffe, LG .
JOURNAL OF HIGH ENERGY PHYSICS, 2000, (11)
[7]   Transport coefficients in high temperature gauge theories, 2. Beyond leading log [J].
Arnold, P ;
Moore, GD ;
Yaffe, LG .
JOURNAL OF HIGH ENERGY PHYSICS, 2003, (05) :1215-1255
[8]   Effective kinetic theory for high temperature gauge theories [J].
Arnold, PB ;
Moore, GD ;
Yaffe, LG .
JOURNAL OF HIGH ENERGY PHYSICS, 2003, (01)
[9]   Gauge-fixing dependence of Φ-derivable approximations -: art. no. 065014 [J].
Arrizabalaga, A ;
Smit, J .
PHYSICAL REVIEW D, 2002, 66 (06)
[10]   Transport coefficients and ladder summation in hot gauge theories [J].
Basagoiti, MAV .
PHYSICAL REVIEW D, 2002, 66 (04)