715 citations · 1.5k across the 23 of their papers we have counts for
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More about QCD on compact spaces
Thomas DeGrand, Roland Hoffmann, Johannes Najjar
We present some results about spontaneous breaking of global symmetries for four-flavor, three color QCD on compact spaces with two short directions. When the two short directions…
Non-perturbative improvement of nHYP smeared Wilson fermions
Roland Hoffmann, Anna Hasenfratz, Stefan Schaefer
Using Schroedinger functional techniques, we determine the coefficient of the clover term necessary for non-perturbative O(a) improvement of hypercubic smeared Wilson fermions on a…
Dynamical simulations with HYP-link Wilson fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
We present results from simulations of two dynamical flavors of improved Wilson fermions with nHYP smeared gauge links. We demonstrate that the simulation is stable at a pseudo-sca…
Localized eigenmodes of the overlap operator and their impact on the eigenvalue distribution
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
In a system where chiral symmetry is spontaneously broken, the low energy eigenmodes of the continuum Dirac operator are extended. On the lattice, due to discretization effects, th…
Hypercubic Smeared Links for Dynamical Fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
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 differen…