Finite-size bosonization and self-consistent harmonic approximation

被引：4

作者：

Mocanu, C ^{[1
]}

Dzierzawa, M ^{[1
]}

Schwab, P ^{[1
]}

Eckern, U ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 36期

关键词：

D O I：

10.1088/0953-8984/16/36/010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The self-consistent harmonic approximation is extended in order to account for the existence of Klein factors in bosonized Hamiltonians. This is important for the study of finite systems where Klein factors cannot be ignored a priori. As a test we apply the method to interacting spinless fermions with modulated hopping. We calculate the finite-size corrections to the energy gap and the Drude weight and compare our results with the exact solution for special values of the model parameters.

引用

页码：6445 / 6451

页数：7

共 23 条

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[2]

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