Logarithmic corrections to finite-size spectrum of SU(N) symmetric quantum chains

被引：9

作者：

Majumdar, K ^{[1
]}

Mukherjee, M

机构：

[1] Berea Coll, Dept Phys, Berea, KY 40404 USA

[2] Miami Univ, Dept Phys, Oxford, OH 45056 USA

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2002年 / 35卷 / 38期

关键词：

D O I：

10.1088/0305-4470/35/38/101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider SU (N) symmetric one-dimensional quantum chains at finite temperature. For such systems the correlation lengths, ground state energy and excited state energies are investigated in the framework of conformal field theory. The possibility of different types of excited states is discussed. Logarithmic corrections to the ground state energy and different types of excited states in the presence of a marginal operator are calculated. The known results for SU (2) and SU (4) symmetric systems follow from our general formula.

引用

页码：L543 / L549

页数：7

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