Martinos, S.S.; Malakis, A.; Hadjiagapiou, I. - In: Physica A: Statistical Mechanics and its Applications 352 (2005) 2, pp. 447-458
We use the recently developed critical minimum energy subspace (CrMES) approximation scheme to study the critical behavior of the Baxter–Wu model. This scheme uses only a properly determined part of the energy spectrum and allows us to obtain high accuracy for relatively large systems with...