Domain-wall dynamics near a quantum critical point

被引：7
|
作者：
Yuan, Shengjun
De Raedt, Hans
Miyashita, Seiji
机构：
[1] Univ Groningen, Zernike Inst Adv Mat, Dept Appl Phys, NL-9747 AG Groningen, Netherlands
[2] Univ Tokyo, Dept Phys, Grad Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan
[3] JST, CREST, Kawaguchi, Saitama, Japan
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 18期
关键词：
D O I：
10.1103/PhysRevB.75.184305
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the real-time domain-wall dynamics near a quantum critical point of the one-dimensional anisotropic ferromagnetic spin 1/2 chain. By numerical simulation, we find that the domain wall is dynamically stable in the Heisenberg-Ising model. Near the quantum critical point, the width of the domain wall diverges as (Delta-1)(-1/2).
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收藏
页数：7
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