723 citations · 4.7k across the 84 of their papers we have counts for
6 papers · 1 filter
Physics prospects of UV-filtered overlap quarks
Stephan Durr, Christian Hoelbling, Urs Wenger
Some key features of the overlap operator with a UV-filtered Wilson kernel are discussed. The first part concerns spectral properties of the underlying shifted hermitean Wilson ope…
UV-filtered overlap fermions
Stephan Dürr, Christian Hoelbling, Urs Wenger
We discuss the kernel spectrum, locality properties and the axial-vector renormalization constant of UV-filtered overlap fermions. We find that UV-filtered overlap fermions have a…
Theoretical issues with staggered fermion simulations
Stephan Durr
The legality of the "rooting trick" in dynamical staggered fermion simulations is discussed, i.e. whether the theory with the Boltzmann weight yields th…
Continuum physics with quenched overlap fermions
Stephan Durr, Christian Hoelbling
We calculate , , and in the quenched continuum limit with UV-filtered overlap fermions. We see rather small scaling violations on lattices as c…
Dissociation of Feshbach Molecules into Different Partial Waves
Stephan Dürr, Thomas Volz, Niels Syassen +5
Ultracold molecules can be associated from ultracold atoms by ramping the magnetic field through a Feshbach resonance. A reverse ramp dissociates the molecules. Under suitable cond…
Filtered overlap: speedup, locality, kernel non-normality and Z_A~1
Stephan Durr, Christian Hoelbling, Urs Wenger
We investigate the overlap operator with a UV filtered Wilson kernel. The filtering leads to a better localization of the operator even on coarse lattices and with the untuned choi…