Comparison of topological charge definitions in Lattice QCD

URN to cite this document:: urn:nbn:de:bvb:355-epub-454544
DOI to cite this document:: 10.5283/epub.45454

Alexandrou, Constantia ; Athenodorou, Andreas ; Cichy, Krzysztof ; Dromard, Arthur ; Garcia-Ramos, Elena ; Jansen, Karl ; Wenger, Urs ; Zimmermann, Falk

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Date of publication of this fulltext: 01 Apr 2021 14:34

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Abstract

In this paper, we show a comparison of different definitions of the topological charge on the lattice. We concentrate on one small-volume ensemble with 2 flavours of dynamical, maximally twisted mass fermions and use three more ensembles to analyze the approach to the continuum limit. We investigate several fermionic and gluonic definitions. The former include the index of the overlap Dirac ...