Abstract
The thermal critical exponent of the four-state Potts model in two dimensions is evaluated as ν-1=1.49±0.01, using the Monte Carlo renormalization-group method. The presence of a marginal scaling direction is also indicated. These results confirm previous conjectures, universality, and logarithmic corrections. A purely Potts Hamiltonian is considered. A four-point interaction is used to control the chemical potential of effective vacancies, without the introduction of explicit vacancy states.
Original language | English |
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Pages (from-to) | 6732-6735 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 24 |
Issue number | 11 |
DOIs | |
State | Published - 1981 |
Externally published | Yes |