722 citations · 4.6k across the 93 of their papers we have counts for
8 papers · 1 filter
First experiences with HMC for dynamical overlap fermions
Achim Bode, Urs M. Heller, Robert G. Edwards +1
We describe an HMC algorithm for dynamical overlap fermions which makes use of their good chiral properties. We test the algorithm in the Schwinger model. Topological sectors are r…
Topology and Chiral Symmetry in QCD with Overlap Fermions
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
We briefly review the overlap formalism for chiral gauge theories, the overlap Dirac operator for massless fermions and its connection to domain wall fermions. We describe properti…
Chiral Condensate in the Deconfined Phase of Quenched Gauge Theories
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
We compute the low lying spectrum of the overlap Dirac operator in the deconfined phase of finite-temperature quenched gauge theory. It suggests the existence of a chiral condensat…
Overlap Dirac Operator, Eigenvalues and Random Matrix Theory
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
The properties of the spectrum of the overlap Dirac operator and their relation to random matrix theory are studied. In particular, the predictions from chiral random matrix theory…
Topology and chiral symmetry in finite temperature QCD
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
We investigate the realization of chiral symmetry in the vicinity of the deconfinement transition in quenched QCD using overlap fermions. Via the index theorem obeyed by the overla…
Quark spectra, topology and random matrix theory
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
Quark spectra in QCD are linked to fundamental properties of the theory including the identification of pions as the Goldstone bosons of spontaneously broken chiral symmetry. The l…