722 citations · 4.6k across the 93 of their papers we have counts for
7 papers · 2 filters
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…
Small eigenvalues of the staggered Dirac operator in the adjoint representation and Random Matrix Theory
Robert G. Edwards, Urs M. Heller, Rajamani Narayanan
The low-lying spectrum of the Dirac operator is predicted to be universal, within three classes, depending on symmetry properties specified according to random matrix theory. The t…