Comparison of different lattice definitions of the topological charge


Autoria(s): Cichy, Krzysztof; Dromard, Arthur; Garcia-Ramos, Elena; Ottnad, Konstantin; Urbach, Carsten; Wagner, Marc; Wenger, Urs; Zimmermann, Falk
Data(s)

2015

Resumo

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.

Formato

application/pdf

Identificador

http://boris.unibe.ch/80342/1/LATTICE2014_075.pdf

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

doi:10.7892/boris.80342

urn:issn:1824-8039

Idioma(s)

eng

Publicador

Scuola Internazionale Superiore di Studi Avanzati SISSA

Relação

http://boris.unibe.ch/80342/

Direitos

info:eu-repo/semantics/openAccess

Fonte

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

Palavras-Chave #530 Physics
Tipo

info:eu-repo/semantics/conferenceObject

info:eu-repo/semantics/publishedVersion

NonPeerReviewed