Dynamical transition in interaction quenches of the one-dimensional Hubbard model

被引：30
|
作者：
Hamerla, Simone A. [1 ]
Uhrig, Goetz S. [1 ]
机构：
[1] Tech Univ Dortmund, Lehrstuhl Theoret Phys 1, D-44221 Dortmund, Germany
来源：
PHYSICAL REVIEW B | 2013年 / 87卷 / 06期
关键词：
QUANTUM-FIELD-THEORY; CORRELATED FERMIONS; SYSTEMS; EXPONENTS; LATTICE;
D O I：
10.1103/PhysRevB.87.064304
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We show that the nonequilibrium time evolution after interaction quenches in the one-dimensional, integrable Hubbard model exhibits a dynamical transition in the half-filled case. This transition ceases to exist upon doping. Our study is based on systematically extended equations of motion. Thus it is controlled for small and moderate times; no relaxation effects are neglected. Remarkable similarities to the quench dynamics in the infinite-dimensional Hubbard model are found, suggesting that dynamical transitions are a general feature of quenches in such models. DOI: 10.1103/PhysRevB.87.064304
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收藏
页数：6
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