PoS - Proceedings of Science
Volume 453 - The 40th International Symposium on Lattice Field Theory (LATTICE2023) - Software Development and Machines
First dynamical simulations with minimally doubled fermions
R. Vig*, S. Borsanyi, Z. Fodor, D. Godzieba, P. Parotto and C.H. Wong
Full text: pdf
Pre-published on: May 02, 2024
Published on: November 06, 2024
Abstract
For thermodynamics studies it is desirable to simulate two degenerate flavors and retain at least a remnant of the chiral
symmetry. Staggered fermions can achieve this at the cost of rooting the determinant. Rooting can be
avoided using minimally doubled fermions. This discretization describes two degenerate quark
flavors while explicitly breaking hyper-cubic symmetry, thus, requiring additional counter-terms.
We use one particular formulation of minimally doubled fermions called the Kirsten-Wilczek
action and mitigate lattice artifacts by improving the spatial derivatives in the Dirac operator. In
this pilot study we determine the counter-terms non-perturbatively to facilitate proper dynamical
simulations.
DOI: https://doi.org/10.22323/1.453.0289
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