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hep-lat2018
Non-perturbative evaluation for anomalous dimension in 2-dimensional O(3) sigma model
Sergio Calle Jimenez, Makoto Oka, Kiyoshi Sasaki
We calculate the wave-function renormalization in 2-dimensional O(3) sigma model, non- perturbatively. It is evaluated in a box with a finite spatial extent. We determine the anoma…
hep-lat2003★ 3 cited
Dynamical generation of a gauge symmetry in the Double-Exchange model
J. M. Carmona, A. Cruz, L. A. Fernandez +7
It is shown that a bosonic formulation of the double-exchange model, one of the classical models for magnetism, generates dynamically a gauge-invariant phase in a finite region of…