One-dimensional strongly interacting Luttinger liquid of lattice spinless fermions

被引：14
|
作者：
Karnaukhov, IN
Ovchinnikov, AA
机构：
[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[2] Joint Inst Chem Phys, Moscow 117334, Russia
[3] Inst Met Phys, UA-03142 Kiev, Ukraine
来源：
EUROPHYSICS LETTERS | 2002年 / 57卷 / 04期
关键词：
D O I：
10.1209/epl/i2002-00495-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider the spinless fermion model with hard-core repulsive potential between particles extended on a few lattice sites delta. The Luttinger-liquid behavior is studied for different values of a hard-core radius. We derive a critical exponent Theta of the one-particle correlation function [c(i)(dagger)c(j)] for an arbitrary electron density and coupling constant. Our results show that at high density the behavior of fermions can be described as a strongly interacting Luttinger liquid with Phi > 1. As a result, the residual Fermi surface disappears.
引用
收藏
页码：540 / 545
页数：6
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