Hypercubic Smeared Links for Dynamical Fermions

Abstract

We investigate a variant of hypercubic gauge link smearing where the SU(3) projection is replaced with a normalization to the corresponding unitary group. This smearing is differentiable and thus suitable for use in dynamical fermion simulations using molecular dynamics type algorithms. We show that this smearing is as efficient as projected hypercubic smearing in removing ultraviolet noise from the gauge fields. We test the normalized hypercubic smearing in dynamical improved (clover) Wilson and valence overlap simulations.

18 pages, 4 figures, REVTeX4

References in corpus (7)

• Stability of lattice QCD simulations and the thermodynamic limit
• Rationale for UV-filtered clover fermions
• Quark condensate in two-flavor QCD
• QCD with light Wilson quarks on fine lattices (II): DD-HMC simulations and data analysis
• Quark condensate in one-flavor QCD
• QCD with two dynamical flavors of chirally improved quarks
• Simulating an arbitrary number of flavors of dynamical overlap fermions

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