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Taste-split staggered actions: eigenvalues, chiralities and Symanzik improvement

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arxiv 1302.0773 v2 pith:ROHDJMUZ submitted 2013-02-04 hep-lat

Stephan Durr This is my paper · ORCID
classification hep-lat
keywords improvementstaggeredactionschiralitiesgammasymanziktermtimes
verification ladder T0 review T1 audit T2 compute T3 formal
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The eigenvalue spectra of staggered fermions with an Adams and/or Hoelbling mass term are studied. The chiralities of the eigenmodes reflect whether the chirality linked to the unflavored approximate (\gamma_5 \times 1) or the flavored exact (\gamma_5 \times \xi_5) staggered symmetry is considered, and which one of the RR, LR, RL, LL eigenmode definitions is used. In either case a sensitivity to the topological charge of the gauge background is found. We discuss how to remove the leading cut-off effects of these actions by means of a properly tuned improvement term and/or the overlap procedure. The combination of Symanzik improvement and link smearing radically improves the properties of the physical branch.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 28 citations worldwide. Full citation record

  1. Lattice QCD Study of Anomalous Transport Phenomena in Strongly Interacting Matter

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    First physical-point lattice QCD calculation of the Chiral Separation Effect conductivity, a zero equilibrium Chiral Magnetic Effect with conserved currents, and a localized equilibrium CME in inhomogeneous fields.

  2. Minimal-doubling and single-Weyl Hamiltonians

    hep-lat 2025-12 unverdicted novelty 6.0 of 10

    Minimal-doubling lattice fermion Hamiltonians yield single-Weyl phases when supplemented by a species-splitting mass term, but one-parameter symmetry-preserving deformations introduce additional Weyl nodes above a cri...

  3. Staggered fermions with taste splitting mass term on dynamical configurations

    hep-lat 2026-07 conditional novelty 5.0 of 10

    Preliminary Nf=2 dynamical simulations of single-taste staggered fermions find negligible rotational-symmetry counterterms and a computable but still-too-heavy pion mass on volumes up to 16^4.

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