三分之一填充下的一维t-U-V-J模型的量子相图（英文）

伊尔夏提·阿斯哈尔; 丁汉芹; 张军

doi:10.13568/j.cnki.651094.2016.03.010

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三分之一填充下的一维t-U-V-J模型的量子相图（英文）

数理科学 | 更新时间：2026-01-21

- 三分之一填充下的一维t-U-V-J模型的量子相图（英文）
- 三分之一填充下的一维t-U-V-J模型的量子相图（英文）
- 新疆大学学报（自然科学版中英文） 2016年33卷第3期页码：307-312
- 作者机构：
  
  新疆大学物理科学与技术学院
- 作者简介：
- 基金信息：
  
  supported by NSFC Project(11265015;11365021;11564038)
- DOI：10.13568/j.cnki.651094.2016.03.010
  中图分类号： O469
- 纸质出版：2016
- 稿件说明：
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[1]伊尔夏提·阿斯哈尔,丁汉芹,张军.三分之一填充下的一维t-U-V-J模型的量子相图（英文）[J].新疆大学学报(自然科学版),2016,33(03):307-312.
[1]伊尔夏提·阿斯哈尔,丁汉芹,张军.三分之一填充下的一维t-U-V-J模型的量子相图（英文）[J].新疆大学学报(自然科学版),2016,33(03):307-312. DOI： 10.13568/j.cnki.651094.2016.03.010.

DOI：10.13568/j.cnki.651094.2016.03.010.

摘要

我们在弱耦合区域研究了一维电子体系

其中电子浓度为三分之一

相互作用包括电子的在位作用、最近邻库仑作用和自旋交换作用.玻色化方法和重整化分析预测了量子相变的发生.通过计算关联函数我们确定了量子相态.基态相图由电荷密度波、自旋密度波、三重超导态和单重超导态组成.研究结果对一维扩展赫伯德模型有着更进一步的理解.

Abstract

We investigate a one-dimensional third-filled electron system with on-site

nearest-neighbor-site Coulomb and exchange interactions at weak coupling. The bosonozation and renormalaliztion group analysis predict occurrence of quantum transitions. The calculation of relevant correlation functions determines dominant phases. The ground state phase diagram consists of the charge-density wave(CDW)

spin-density-wave(SDW)

triplet-superconductivity(TS) and singlet-superconductivity(SS) phases. The results are expected to provide an important insight into 1D extended Hubbard models.

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