First dynamical simulations with minimally doubled fermions
Proceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023)(2024)
摘要
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.
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