Abelian and non-Abelian Berry curvatures in lattice QCD

We studied the Berry curvature of the massive Dirac fermion in 3+1 dimensions. For the non-interacting Dirac fermion, the Berry curvature is non-Abelian because of the degeneracy of positive and negative helicity modes. We calculated the non-Abelian Berry curvature analytically and numerically. For...

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Bibliographic Details
Main Authors: Shi Pu, Arata Yamamoto
Format: Article
Language:English
Published: Elsevier 2018-08-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321318301627