QED(1+1) at finite temperature - A study with light-cone quantisation

被引：21

作者：

Elser, S ^{[1
]}

Kalloniatis, AC ^{[1
]}

机构：

[1] MAX PLANCK INST KERNPHYS,D-69029 HEIDELBERG,GERMANY

来源：

PHYSICS LETTERS B | 1996年 / 375卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(96)00201-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore quantum electrodynamics in (1+1) dimensions at finite temperature using the method of Discretized Light-Cone Quantisation (DLCQ). The partition function, energy and specific heat are computed in the canonical ensemble using the spectrum of invariant masses computed with a standard DLCQ numerical routine. In particular, the specific heat exhibits a peak which grows as the continuum limit is numerically approached. A critical exponent is tentatively extracted. The surprising result is that the density of states contains significant finite size artifacts even for a relatively high harmonic resolution. These and the other outstanding problems in the present calculation are discussed.

引用

页码：285 / 291

页数：7

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