Plasmon in hot Phi(4) theory

被引：54

作者：

Wang, E

Heinz, U

机构：

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.53.899

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the two-loop resummed propagator in hot g(2) phi(4) theory. The propagator has a cut along the whole real axis in the complex energy plane, but for small g the spectral density is sharply peaked around the plasmon. The dispersion relation and the width of the plasmon are calculated at zero and finite momentum. At large momenta the spectral width vanishes, and the plasmon loses its collectivity and behaves like a noninteracting free particle.

引用

收藏

页码：899 / 910

页数：12

相关论文

共 19 条

[1] CALCULATION OF THE QUARK DAMPING RATE IN HOT QCD [J].

BRAATEN, E ;

PISARSKI, RD .

PHYSICAL REVIEW D, 1992, 46 (04) :1829-1834

[2] SOFT AMPLITUDES IN HOT GAUGE-THEORIES - A GENERAL-ANALYSIS [J].

BRAATEN, E ;

PISARSKI, RD .

NUCLEAR PHYSICS B, 1990, 337 (03) :569-634

[3] SYMMETRY BEHAVIOR AT FINITE TEMPERATURE [J].

DOLAN, L ;

JACKIW, R .

PHYSICAL REVIEW D, 1974, 9 (12) :3320-3341

[4] COLORED PLASMONS IN A QUARK-GLUON PLASMA NEAR EQUILIBRIUM [J].

HEINZ, U ;

SIEMENS, PJ .

PHYSICS LETTERS B, 1985, 158 (01) :11-14

[5] NONEQUILIBRIUM THERMODYNAMICS IN FIELD-THEORY - TRANSPORT-COEFFICIENTS [J].

HOSOYA, A ;

SAKAGAMI, M ;

TAKAO, M .

ANNALS OF PHYSICS, 1984, 154 (01) :229-252

[6] THE VISCOSITY COEFFICIENT IN TEMPERATURE GAUGE-THEORIES - QCD PLASMA [J].

ILYIN, SV ;

PANFEROV, AD ;

SINYUKOV, YM .

PHYSICS LETTERS B, 1989, 227 (3-4) :455-460

[7] HYDRODYNAMIC TRANSPORT-COEFFICIENTS IN RELATIVISTIC SCALAR FIELD-THEORY [J].

JEON, SY .

PHYSICAL REVIEW D, 1995, 52 (06) :3591-3642

[8] COMPUTING SPECTRAL DENSITIES IN FINITE-TEMPERATURE FIELD-THEORY [J].

JEON, SY .

PHYSICAL REVIEW D, 1993, 47 (10) :4586-4607

[9]

Kapusta J., 1994, Finite-Temperature Field Theory, P163

[10]

KLIMOV VV, 1981, SOV J NUCL PHYS+, V33, P934