Quantum phase transition and von Neumann entropy of quasiperiodic Hubbard chains

被引：0

作者：

朱璇 ^{[1
]}

童培庆 ^{[1
]}

机构：

[1] Department of Physics, Nanjing Normal University

来源：

Chinese Physics B | 2008年 / 05期

基金：

中国国家自然科学基金;

关键词：

von Neumann entropy; quasiperiodicity; Hubbard model; spin-density waves;

D O I：

暂无

中图分类号：

O413.1 [量子力学（波动力学、矩阵力学）];

学科分类号：

070205 ; 0809 ;

摘要：

The half-filled Hubbard chains with the Fibonacci and Harper modulating site potentials are studied in a self- consistent mean-field approximation. A new order parameter is introduced to describe a charge density order. We also calculate the von Neumann entropy of the ground state. The results show that the von Neumann entropy can identify a CDW/SDW (charge density wave/spin density wave) transition for quasiperiodic models.

引用

页码：1623 / 1628

页数：6

共 50 条

[31] Von Neumann Entropy Controlled Reduction of Quantum Representations for Weather Data Fusion and Decision-Making
Peng, Weimin
Chen, Aihong
IEEE SYSTEMS JOURNAL, 2021, 15 (04): : 5332 - 5342
[32] Lindbladian operators, von Neumann entropy and energy conservation in time-dependent quantum open systems
Ou, Congjie
Chamberlin, Ralph V.
Abe, Sumiyoshi
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2017, 466 : 450 - 454
[33] THE VON NEUMANN ENTROPY OF EPR SPIN CORRELATION FOR THE RELATIVISTIC PAIRS
Nishikawa, Yoshihisa
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2008, 23 (27-28): : 4449 - 4466
[34] Calculation of von Neumann entropy for hydrogen and positronium negative ions
Lin, Chien-Hao
Ho, Yew Kam
PHYSICS LETTERS A, 2014, 378 (38-39) : 2861 - 2865
[35] Enhancing von Neumann entropy by chaos in spin–orbit entanglement
刘郴荣
喻佩
陈宪章
徐洪亚
黄亮
来颖诚
Chinese Physics B, 2019, (10) : 157 - 163
[36] Identifying Vital Nodes in Hypergraphs Based on Von Neumann Entropy
Hu, Feng
Tian, Kuo
Zhang, Zi-Ke
ENTROPY, 2023, 25 (09)
[37] Enhancing von Neumann entropy by chaos in spin-orbit entanglement
Liu, Chen-Rong
Yu, Pei
Chen, Xian-Zhang
Xu, Hong-Ya
Huang, Liang
Lai, Ying-Cheng
CHINESE PHYSICS B, 2019, 28 (10)
[38] VON NEUMANN ENTROPY PENALIZATION AND LOW-RANK MATRIX ESTIMATION
Koltchinskii, Vladimir
ANNALS OF STATISTICS, 2011, 39 (06) : 2936 - 2973
[39] Trustworthiness assessment for industrial IoT as multilayer networks with von Neumann entropy
Wu, Xing
Wang, Jianjia
Wang, Peng
Bian, Zhaoxiang
Huang, Tao
Guo, Yike
Fujita, Hamido
APPLIED SOFT COMPUTING, 2021, 106
[40] A method of evaluating the quality of dual-path entangled quantum microwave signal generated based on von Neumann entropy
Li Xiang
Wu De-Wei
Wang Xi
Miao Qiang
Chen Kun
Yang Chun-Yan
ACTA PHYSICA SINICA, 2016, 65 (11)

← 1 2 3 4 5 →