scholarly journals Quantum cluster variational method and phase diagram of the quantum ferromagnetic J1−J2 model

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
E. Domínguez ◽  
C. E. Lopetegui ◽  
Roberto Mulet
Keyword(s):  
Phase Diagram ◽  
Variational Method ◽  
Quantum Cluster ◽  
Cluster Variational Method

On the Choice of a Maximal Cluster in the Cluster Variational Method

1992 ◽  
Vol 291 ◽  
Author(s):  
David A. Vul ◽  
Didier de Fontaine
Keyword(s):  
Variational Method ◽  
Three Dimensional ◽  
Simple Algorithm ◽  
Cluster Variational Method ◽  
Maximal Clusters

ABSTRACTAn explanation of the occurrence of unphysical solutions in the cluster variational method is given. A simple algorithm for the construction of an optimal maximal cluster, i.e., a cluster that guarantees correct results for any set of interatomic interactions, is suggested. Examples of optimal maximal clusters for various two- and three-dimensional lattices are presented.

scholarly journals Gauge-free cluster variational method by maximal messages and moment matching

2017 ◽  
Vol 95 (4) ◽  
Author(s):  
Eduardo Domínguez ◽  
Alejandro Lage-Castellanos ◽  
Roberto Mulet ◽  
Federico Ricci-Tersenghi
Keyword(s):  
Variational Method ◽  
Moment Matching ◽  
Free Cluster ◽  
Cluster Variational Method

scholarly journals Replica cluster variational method: the replica symmetric solution for the 2D random bond Ising model

2013 ◽  
Vol 46 (13) ◽  
pp. 135001 ◽  
Author(s):  
Alejandro Lage-Castellanos ◽  
Roberto Mulet ◽  
Federico Ricci-Tersenghi ◽  
Tommaso Rizzo
Keyword(s):  
Ising Model ◽  
Variational Method ◽  
Symmetric Solution ◽  
Cluster Variational Method

scholarly journals Cycle-Based Cluster Variational Method for Direct and Inverse Inference

2016 ◽  
Vol 164 (3) ◽  
pp. 531-574 ◽  
Author(s):  
Cyril Furtlehner ◽  
Aurélien Decelle
Keyword(s):  
Variational Method ◽  
Cluster Variational Method

Cluster variational method for a fluid in a narrow capillary

1990 ◽  
Vol 42 (12) ◽  
pp. 7340-7346 ◽  
Author(s):  
E. Velasco ◽  
P. Tarazona
Keyword(s):  
Variational Method ◽  
Narrow Capillary ◽  
Cluster Variational Method
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