Spin dynamics in the supersymmetric t-J model with inverse-square interaction

被引：7

作者：

Arikawa, M ^{[1
]}

Yamamoto, T

Saiga, Y

Kuramoto, Y

机构：

[1] Univ Melbourne, Dept Math & Stat, Melbourne, Vic 3010, Australia

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[3] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia

[4] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[5] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 04期

关键词：

spin dynamics; t-J model; supersymmetry; fractional statistics; Sutherland model;

D O I：

10.1143/JPSJ.73.808

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamical spin structure factor S(q, omega) is obtained analytically for the one-dimensional supersymmetric t-J model with 1/r(2) interaction. In contrast with the conventional view on the spin-charge separation, interpretation of S(q, omega) requires both fractionalized and non-fractionalized electrons depending on the energy-momentum region. At low energies, the spectrum is naturally explained in terms of spinons, holons, and antiholons, all of which obey fractional exclusion statistics.

引用

页码：808 / 811

页数：4

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