Abelian and non-Abelian Berry curvatures in lattice QCD
Abelian and non-Abelian Berry curvatures in lattice QCD
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DOI:
10.1016/j.nuclphysb.2018.06.005
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发表时间:
2018-08-01
影响因子:
2.8
通讯作者:
Yamamoto, Arata
中科院分区:
文献类型:
--
作者:
Pu, Shi;Yamamoto, Arata
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 the interacting Dirac fermion in QCD, the degeneracy is lost because gluons carry helicity and color charge. We calculated the Abelian Berry curvature in lattice QCD. (c) 2018 The Author(s). Published by Elsevier B.V.