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@INPROCEEDINGS{Durr:1052702,
      author       = {Durr, Stephan and Capitani, Stefano},
      title        = {{T}aste-splittings of staggered, {K}arsten-{W}ilczek and
                      {B}orici-{C}reutz fermions under gradient flow in 2{D}},
      reportid     = {FZJ-2026-01059},
      year         = {2025},
      abstract     = {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 $β$).},
      month         = {Jul},
      date          = {2024-07-28},
      organization  = {The 41st International Symposium on
                       Lattice Field Theory, Liverpool (UK),
                       28 Jul 2024 - 3 Aug 2024},
      subtyp        = {After Call},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511)},
      pid          = {G:(DE-HGF)POF4-5111},
      typ          = {PUB:(DE-HGF)24},
      doi          = {10.22323/1.466.0460},
      url          = {https://juser.fz-juelich.de/record/1052702},
}