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cond-mat.stat-mech2018
Quantum Ising model on the frustrated square lattice
N. Kellermann, M. Schmidt, F. M. Zimmer
We investigate the role of a transverse field on the Ising square antiferromagnet with first-() and second-() neighbor interactions. Using a cluster mean-field approach,…
cond-mat.stat-mech2016
Quantum correlated cluster mean-field theory applied to the transverse Ising model
F. M. Zimmer, M. Schmidt, Jonas Maziero
Mean-field theory (MFT) is one of the main available tools for analytical calculations entailed in investigations regarding many-body systems. Recently, there have been an urge of…