Luttinger liquid parameter for the spin-1 Heisenberg chain in a magnetic field

被引：9
|
作者：
Affleck, I [1 ]
机构：
[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
来源：
PHYSICAL REVIEW B | 2005年 / 72卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.72.132414
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A recently derived general formula and older numerical results are combined to deduce the behavior of the transverse correlation exponent for the spin-1 Heisenberg antiferromagnetic chain in an applied magnetic field eta approximate to 1/2-(2.0)m+O(m(2)), where m is the magnetization per site. A comparison with the O(3) nonlinear sigma model is also made.
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页数：2
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