CRITICAL-BEHAVIOR OF A ONE-DIMENSIONAL HUBBARD-MODEL WITH 1/SINH HOPPING

被引：4

作者：

BARES, PA

GEBHARD, F

机构：

[1] UNIV MARBURG, DEPT PHYS, D-35032 MARBURG, GERMANY

[2] UNIV MARBURG, CTR MAT SCI, D-35032 MARBURG, GERMANY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 11期

关键词：

D O I：

10.1088/0953-8984/7/11/006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Applying the finite-size scaling in conformal field theory, we evaluate the correlation functions and susceptibilities of a ID Hubbard model with 1/sinh(kappa r) hopping and repulsive interaction in an external magnetic field. The error introduced in our approximation scheme should be exponentially small in the thermodynamic limit. Incidentally, we provide the generalization of previous work on critical exponents to the case where the right and left Fermi velocities do not coincide.

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页码：2285 / 2291

页数：7

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