%0 Conference Paper
%A Durr, Stephan
%A Ammer, Maximilian
%T Intra-taste eigenvalue splittings of staggered, Karsten-Wilczek and Borici-Creutz fermions in 2D
%I Sissa Medialab Trieste, Italy
%M FZJ-2023-05492
%P 291
%D 2022
%< Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022) - Sissa Medialab Trieste, Italy, 2022. - ISBN - doi:10.22323/1.430.0291
%X Staggered, Karsten-Wilczek (KW) and Borici-Creutz (BC) fermions all retain a remnant chiral symmetry. The price to be payed is that they are doubled, and the resulting taste symmetry is broken by cut-off effects. We measure the size of the taste symmetry violation by determining the low-lying eigenvalues of these fermion operators in the two-dimensional Schwinger model which admits, like QCD, a global topological charge q∈ℤ of a given gauge configuration. We find that it matters whether the pertinent eigenmode is a would-be zero mode or a non-topological mode. The intra-taste splittings of these fermion formulations are all found to diminish with increasing β. Our goal is to verify standard Symanzik scaling for these taste-breaking effects.
%B The 39th International Symposium on Lattice Field Theory
%C 8 Aug 2022 - 13 Aug 2022, Bonn (Germany)
Y2 8 Aug 2022 - 13 Aug 2022
M2 Bonn, Germany
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%R 10.22323/1.430.0291
%U https://juser.fz-juelich.de/record/1019545