Dynamical density correlation function of one-dimensional Mott insulators in a magnetic field

被引：14

作者：

Controzzi, D ^{[1
]}

Essler, FHL

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.66.165112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider the one-dimensional extended Hubbard model at half filling in the presence of a magnetic field. Using field theory techniques we calculate the dynamical density-density correlation function chi(nn)(omega,q) in the low-energy limit. When excitons are formed, a singularity appears in chi(nn)(omega,q) at a particular energy and momentum transfer.

引用

页码：1 / 7

页数：7

共 49 条

[1] Exact form factors in integrable quantum field theories: the sine-Gordon model [J].