The two-dimensional 4-state Potts model in a magnetic field

被引：6
|
作者：
Berche, B. [1 ]
Butera, P. [2 ,3 ]
Shchur, L. N. [4 ]
机构：
[1] Univ Lorraine, CNRS, UMR 7198, Stat Phys Grp,Inst Jean Lamour,Lab Associe, F-54506 Vandoeuvre Les Nancy, France
[2] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy
[3] Milano Bicocca Univ, Dept Phys, Milan, Italy
[4] Russian Acad Sci, Landau Inst Theoret Phys, Chernogolovka 142432, Russia
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2013年 / 46卷 / 09期
关键词：
UNIVERSAL AMPLITUDE RATIOS; LOGARITHMIC CORRECTIONS; MULTICRITICAL POINT; PERCOLATION;
D O I：
10.1088/1751-8113/46/9/095001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a solution of the nonlinear renormalization group equations leading to the dominant and subdominant singular behaviors of physical quantities (free energy density, correlation length, internal energy, specific heat, magnetization, susceptibility and magnetocaloric coefficient) at the critical temperature in a non-vanishing magnetic field. The solutions (i) lead to exact cancellation of logarithmic corrections in universal amplitude ratios and (ii) prove recently proposed relations among logarithmic exponents.
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页数：7
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