An extended approach for computing the critical properties in the two-and three-dimensional lattices within the effective-field renormalization group method

[摘要] In this letter we employing the effective-field renormalization group (EFRG) to study the Ising model with nearest neighbors to obtain the reduced critical temperature and exponents v for bi- and three dimensional lattices by increasing cluster scheme by extending recent works. The technique follows up the same strategy of the mean field renormalization group (MFRG) by introducing an alternative way for constructing classical effective-field equations of state takes on rigorous Ising spin identities. (C) 2009 Elsevier B.V. All rights reserved.

[发布日期] 2009-10-01

[关键词] Renormalization group;Ising model;Effective field