Cichy, Krzysztof; Dromard, Arthur; Garcia-Ramos, Elena; Ottnad, Konstantin; Urbach, Carsten; Wagner, Marc; Wenger, Urs; Zimmermann, Falk (2015). Comparison of different lattice definitions of the topological charge. PoS - proceedings of science, LATTICE2014, p. 75. Scuola Internazionale Superiore di Studi Avanzati SISSA
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We present a comparison of different definitions of the topological charge on the lattice, using a small-volume ensemble with 2 flavours of dynamical twisted mass fermions. The investigated definitions are: index of the overlap Dirac operator, spectral projectors, spectral flow of the HermitianWilson- Dirac operator and field theoretic with different kinds of smoothing of gauge fields (HYP and APE smearings, gradient flow, cooling). We also show some results on the topological
susceptibility.
Item Type: |
Conference or Workshop Item (Paper) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Wenger, Urs |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1824-8039 |
Publisher: |
Scuola Internazionale Superiore di Studi Avanzati SISSA |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
06 May 2016 15:11 |
Last Modified: |
07 Apr 2024 20:03 |
BORIS DOI: |
10.7892/boris.80342 |
URI: |
https://boris.unibe.ch/id/eprint/80342 |
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