The twodimensional 4state Potts model in a magnetic field
Abstract
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 nonvanishing 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.
 Publication:

Journal of Physics A Mathematical General
 Pub Date:
 March 2013
 DOI:
 10.1088/17518113/46/9/095001
 arXiv:
 arXiv:1301.5219
 Bibcode:
 2013JPhA...46i5001B
 Keywords:

 High Energy Physics  Lattice;
 Condensed Matter  Statistical Mechanics
 EPrint:
 J. Phys. A Math. Theor. 46 (2013) 095001