Entanglement and quantum phase transition in the extended Hubbard model

被引：394

作者：

Gu, SJ ^{[1
]}

Deng, SS

Li, YQ

Lin, HQ

机构：

[1] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[2] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.086402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study quantum entanglement in a one-dimensional correlated fermionic system. Our results show, for the first time, that entanglement can be used to identify quantum phase transitions in fermionic systems.

引用

页码：086402 / 1

页数：4

共 28 条

[1] Quantum information and computation [J].

Bennett, CH ;

DiVincenzo, DP .

NATURE, 2000, 404 (6775) :247-255

[2] GROUND-STATE ENERGY OF THE HALF-FILLED ONE-DIMENSIONAL HUBBARD-MODEL [J].

ECONOMOU, EN ;

POULOPOULOS, PN .

PHYSICAL REVIEW B, 1979, 20 (11) :4756-4758

[3] Can quantum-mechanical description of physical reality be considered complete? [J].

Einstein, A ;

Podolsky, B ;

Rosen, N .

PHYSICAL REVIEW, 1935, 47 (10) :0777-0780

[4]

Emery V J., 1979, Highly Conducting One-Dimensional Solids, Ved, pp 247

[5] Entanglement, quantum phase transition, and scaling in the XXZ chain -: art. no. 042330 [J].

Gu, SJ ;

Lin, HQ ;

Li, YQ .

PHYSICAL REVIEW A, 2003, 68 (04) :4

[6] Anisotropy and magnetic field effects on the entanglement of a two qubit Heisenberg XY chain -: art. no. 107901 [J].

Kamta, GL ;

Starace, AF .

PHYSICAL REVIEW LETTERS, 2002, 88 (10) :4

[7]

LATORRE JI, QUANTPH0304098

[8] ABSENCE OF MOTT TRANSITION IN AN EXACT SOLUTION OF SHORT-RANGE 1-BAND MODEL IN 1 DIMENSION [J].

LIEB, EH ;

WU, FY .

PHYSICAL REVIEW LETTERS, 1968, 20 (25) :1445-+

[9]

Lin HQ, 2000, CHINESE J PHYS, V38, P1

[10]

LIN HQ, HUBBARD MODEL ITS PH, P315

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