Universal relaxational dynamics of gapped one-dimensional models in the quantum sine-Gordon universality class

被引：49
|
作者：
Damle, K
Sachdev, S
机构：
[1] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India
[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 18期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.95.187201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A semiclassical approach to the low-temperature real-time dynamics of generic one-dimensional, gapped models in the sine-Gordon model universality class is developed. Asymptotically exact universal results for correlation functions are obtained in the temperature regime T << Delta, where Delta is the energy gap.
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