Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Phase separation induced by density-spin interaction in one-dimensional extended t-J model

Mao Bin-Bin Cheng Chen Chen Fu-Zhou Luo Hong-Gang

Phase separation induced by density-spin interaction in one-dimensional extended t-J model

Mao Bin-Bin, Cheng Chen, Chen Fu-Zhou, Luo Hong-Gang
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  912
  • PDF Downloads:  168
  • Cited By: 0
Publishing process
  • Received Date:  02 September 2015
  • Accepted Date:  15 September 2015
  • Published Online:  05 September 2015

Phase separation induced by density-spin interaction in one-dimensional extended t-J model

    Corresponding author: Luo Hong-Gang, luohg@lzu.edu.cn
  • 1. Center of Interdisciplinary Studies of Department of Physics, Lanzhou University, Lanzhou 730000, China;
  • 2. Beijing Computational Science Research Center, Beijing 100084, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 11325417, 11174115).

Abstract: t-J model is one of important theoretical models in the study of high temperature superconductivity. Recent cold molecule experiments indicate that t-J model can be simulated by ultracold polar molecules. In the simulated t-J model, besides long-range dipolar interaction, density-spin interaction has also been introduced. In the present we study the effect of density-spin interaction in the one-dimensional extended t-J model by using the density matrix renormalization group method. We choose three sets of representative parameters, which correspond to three different phases in the ground state phase diagram of t-J model, to calculate the charge and spin density distribution in real space and the structure factor of density-density and spin-spin correlation functions. The results indicate that the nature of the system will not change if the intensity of the density-spin interaction is small, however if the intensity is large enough, the system enters the phase separation, in which the character is quiet different form that of the phase separation in the traditional t-J model.

Reference (25)

Catalog

    /

    返回文章
    返回