A variational renormalization group approach to two coupled Ising systems
- 1 November 1976
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 9 (11) , L165-L170
- https://doi.org/10.1088/0305-4470/9/11/002
Abstract
Using the variational block-spin approximation of Kadanoff (1975) a renormalization group recursion relation suitable for two-layered Ising systems is constructed. The critical behaviour of the Ashkin-Teller model is described in some detail.Keywords
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