Spin-charge separated Luttinger liquid in arbitrary spatial dimensions

被引：5
|
作者：
Byczuk, K [1 ]
Spalek, J [1 ]
机构：
[1] JAGIELLONIAN UNIV, INST PHYS, PL-30059 KRAKOW, POLAND
来源：
SOLID STATE COMMUNICATIONS | 1996年 / 99卷 / 02期
基金：
美国国家科学基金会;
关键词：
high-T-c superconductors; metals; electron-electron interactions;
D O I：
10.1016/S0038-1098(96)80057-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A model with a singular forward scattering amplitude for particles with opposite spins in d spatial dimensions is proposed and solved by using the bosonization transformation. This interaction potential leads to the spin-charge separation. Thermal properties at low temperature for this normal Luttinger liquid are discussed. Also, the explicit forms of the single-electron Green function and of the spectral weight function are found; they have square-root branch cuts. New fermion field operators are defined; they describe holons and spinons as the elementary excitations. Their single particle Green functions possess pseudoparticle properties. Using these operators the spin-charge separated Hamiltonian for ideal gases of holons and spinons is derived and reflects an inverse (fermionization) transformation. Copyright (C) 1996 Published by Elsevier Science Ltd.
引用
收藏
页码：99 / 104
页数：6
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