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On the continuum limit of fermionic topological charge in lattice gauge theory

David H. Adams
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Abstract

It is proved that the fermionic topological charge of SU(N) lattice gauge fields on the 4-torus, given in terms of a spectral flow of the Hermitian Wilson--Dirac operator, or equivalently, as the index of the Overlap Dirac operator, reduces to the continuum topological charge in the classical continuum limit when the parameter $m_0$ is in the physical region $0<m_0<2$.

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David H. Adams. 2001-08-15. On the continuum limit of fermionic topological charge in lattice gauge theory. https://doi.org/10.1063/1.1415087

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