Density correlations in the half-filled Hubbard model

被引：14

作者：

Essler, FHL

Frahm, H

机构：

[1] Univ Oxford, Dept Phys Theoret Phys, Oxford OX1 3NP, England

[2] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.60.8540

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider density-density correlations in the one-dimensional Hubbard model at half filling. On intuitive grounds one might expect them to exhibit an exponential decay. However, as has been noted recently, this is not obvious from the Bethe Ansatz/conformal field theory (BA/CFT) approach, We show that by supplementing the BA/CFT analysis with simple symmetry arguments one can easily prove that correlations of the lattice density operators decay exponentially. [S0163-1829(99)12135-0].

引用

页码：8540 / 8542

页数：3

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