Electrical conductivity in the early universe

被引：101

作者：

Baym, G ^{[1
]}

Heiselberg, H ^{[1
]}

机构：

[1] NORDITA, DK-2100 COPENHAGEN O, DENMARK

来源：

PHYSICAL REVIEW D | 1997年 / 56卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.56.5254

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the electrical conductivity in the early universe at temperatures below as well as above the electroweak vacuum scale, T-c=100 GeV. Debye and dynamical screening of electric and magnetic interactions leads to a finite conductivity, sigma(el)similar to T/alpha In(1/alpha), at temperatures well below T-c. At temperatures above, W+/- charge-exchange processes-analogous to color exchange through gluons in QCD-effectively stop left-handed charged leptons. However, right-handed leptons can carry current, resulting in sigma(el)/T being only a factor similar to cos(4) theta(W) Smaller than at temperatures below T-c. [S0556-2821(97)06620-4].

引用

页码：5254 / 5259

页数：6

共 37 条

[11] ENERGY-LOSS OF A HEAVY FERMION IN A HOT QED PLASMA [J].

BRAATEN, E ;

THOMA, MH .

PHYSICAL REVIEW D, 1991, 44 (04) :1298-1310

[12] DAMPING OF ENERGETIC GLUONS AND QUARKS IN HIGH-TEMPERATURE QCD [J].

BURGESS, CP ;

MARINI, AL .

PHYSICAL REVIEW D, 1992, 45 (01) :R17-R20

[13] PRIMORDIAL MAGNETIC-FIELDS GENERATED IN THE QUARK-HADRON TRANSITION [J].

CHENG, BL ;

OLINTO, AV .

PHYSICAL REVIEW D, 1994, 50 (04) :2421-2424

[14] THE FUNDAMENTAL SU(2) HIGGS-MODEL AT FINITE TEMPERATURE [J].

DAMGAARD, PH ;

HELLER, UM .

NUCLEAR PHYSICS B, 1987, 294 (01) :253-278

[15] TOWARDS THE THEORY OF THE ELECTROWEAK PHASE-TRANSITION [J].

DINE, M ;

LEIGH, RG ;

HUET, P ;

LINDE, A ;

LINDE, D .

PHYSICAL REVIEW D, 1992, 46 (02) :550-571

[16] GAUGE FIELD THERMODYNAMICS FOR THE SU(2) YANG-MILLS SYSTEM [J].

ENGELS, J ;

KARSCH, F ;

SATZ, H ;

MONTVAY, I .

NUCLEAR PHYSICS B, 1982, 205 (04) :545-577

[17] HIGH-TEMPERATURE SU(2) GLUON MATTER ON THE LATTICE [J].

ENGELS, J ;

KARSCH, F ;

SATZ, H ;

MONTVAY, I .

PHYSICS LETTERS B, 1981, 101 (1-2) :89-94

[18] FERROMAGNETIC VACUUM AND GALACTIC MAGNETIC-FIELDS [J].

ENQVIST, K ;

OLESEN, P .

PHYSICS LETTERS B, 1994, 329 (2-3) :195-198

[19]

ENQVIST K, 1995, NUCL PHYS B, V436, P49, DOI 10.1016/0550-3213(94)00506-A

[20] 3D PHYSICS AND THE ELECTROWEAK PHASE-TRANSITION - PERTURBATION-THEORY [J].

FARAKOS, K ;

KAJANTIE, K ;

RUMMUKAINEN, K ;

SHAPOSHNIKOV, M .

NUCLEAR PHYSICS B, 1994, 425 (1-2) :67-109

← 1 2 3 4 →