TY  - CONF
AU  - Durr, Stephan
AU  - Capitani, Stefano
TI  - Taste-splittings of staggered, Karsten-Wilczek and Borici-Creutz fermions under gradient flow in 2D
M1  - FZJ-2026-01059
PY  - 2025
AB  - Karsten-Wilczek and Borici-Creutz fermions show a near-degeneracy of the $2$ species involved, similar to the $2^{d/2}$ species of staggered fermions. Hence in $d=2$ dimensions all three formulations happen to be minimally doubled (two species). This near-degeneracy shows up both in the eigenvalue spectrum of the respective Dirac operator and in spectroscopic quantities (e.g. the pion mass), but in the former case it is easier to quantify. We use the quenched Schwinger model to determine the low-lying eigenvalues of these fermion operators at a fixed gradient flow time $τ$ (either in lattice units or in physical units, hence keeping either $τ/a^2$ or $e^2τ$ fixed at all $β$).
T2  - The 41st International Symposium on Lattice Field Theory
CY  - 28 Jul 2024 - 3 Aug 2024, Liverpool (UK)
Y2  - 28 Jul 2024 - 3 Aug 2024
M2  - Liverpool, UK
LB  - PUB:(DE-HGF)24
DO  - DOI:10.22323/1.466.0460
UR  - https://juser.fz-juelich.de/record/1052702
ER  -