Finite-size scaling for the spin-1/2 Heisenberg antiferromagnetic chain

被引：22
|
作者：
Barzykin, V
Affleck, I
机构：
[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[2] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada
[3] Univ British Columbia, Canadian Inst Adv Res, Vancouver, BC V6T 1Z1, Canada
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1999年 / 32卷 / 06期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1088/0305-4470/32/6/001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Corrections to the asymptotic correlation function in a Heisenberg spin-1/2 antiferromagnetic spin chain are known to vanish slowly (logarithmically) as a function of the distance r or the chain size L. This leads to significant differences with numerical results. We calculate the sub-leading logarithmic corrections to the finite-size correlation function, using renormalization group improved perturbation theory, and compare the result with numerical data.
引用
收藏
页码：867 / 874
页数：8
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