Proceeding di conferenze
| Finite-Size scaling at Yang-Lee singularities of 2D discrete spin models |
| Wydro T., McCabe J. |
| J. Phys.: Conf. Ser. 30 (2006) 98 |
| DOI : 10.1088/1742-6596/30/1/013 |
We numerically study the Hamiltonian limits of the two dimensional (2D) Ising and 3-state Potts models in complex magneticfields. From the Phenomenological Renormalization Group, we find the criticalfield values associated with the Yang-Lee singularity (YLS) in these models. We also determine the low-lying part of the excitation spectrum at the YLS. Finally, we compare the resulting patterns of energy levels to predictions for conformal non-unitary minimal models. |