Exact solution of U → ∞ 1D Hubbard model in electric field

被引：1
|
作者：
Zheng, Yong [1 ]
机构：
[1] Qiannan Normal Univ Nationalities, Sch Phys & Elect, Duyun 558000, Peoples R China
来源：
PHYSICS LETTERS A | 2021年 / 394卷
关键词：
Hubbard model; Electric field; Exact solution; Charge current;
D O I：
10.1016/j.physleta.2020.127112
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The U -> +infinity one-dimensional Hubbard model in electric field has been exactly solved. The exact time-evolution states have been obtained, with which we have calculated the charge current exactly. We find that the charge current, despite the strong correlation interactions of electrons, can show undamped Bloch oscillations strangely, which has been further revealed to be mainly due to the temporal periodicity of the Hamiltonian in electric field. (C) 2020 Published by Elsevier B.V.
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页数：5
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