Scaling properties of the projected SO(5) model in three dimensions

Details Scaling properties of the projected SO(5) model in three dimensions Scaling properties of the projected SO(5) model in three dimensions

2002-07-22

arxiv.org/abs/cond-mat/0207528v6

Physics

Condensed Matter

Strongly Correlated Electrons

Completely revised and expanded version. Includes scaling analisis for more general systems away from the "pSO(5)" condition 7

Scientific paper

10.1103/PhysRevB.68.245111

We study the scaling properties of the quantum ``projected'' SO(5) model in three dimensions by means of a highly accurate Quantum-Monte-Carlo analysis. Within the parameter regime studied (temperature and system size), we show that the scaling behavior is consistent with a SO(5)-symmetric critical behavior in a relative extendent transient regime. This holds both when the symmetry breaking is caused by quantum fluctuations only as well as when also the static (mean-field) symmetry is moderately broken. We argue that possible departure away from the SO(5)-symmetric scaling occurs only in an extremely narrow parameter regime, which is inaccessible both experimentally and numerically.

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