We propose new techniques for the numerical implementation of the overlap-Dirac operator, which exploit the physical properties of the underlying theory to avoid nested algorithms. We test these procedures in the two-dimensional Schwinger model and the results are very promising. These techniques can be directly applied to QCD simulations. We also present a detailed computation of the spectrum and the chiral properties of the Schwinger model in the overlap lattice formulation.
Giusti, L., Hoelbling, C., Rebbi, C. (2001). Schwinger model with the overlap Dirac operator: Exact results versus a physics motivated approximation. PHYSICAL REVIEW D, 64(5), 054501 [10.1103/PhysRevD.64.054501].
Schwinger model with the overlap Dirac operator: Exact results versus a physics motivated approximation
GIUSTI, LEONARDO;
2001
Abstract
We propose new techniques for the numerical implementation of the overlap-Dirac operator, which exploit the physical properties of the underlying theory to avoid nested algorithms. We test these procedures in the two-dimensional Schwinger model and the results are very promising. These techniques can be directly applied to QCD simulations. We also present a detailed computation of the spectrum and the chiral properties of the Schwinger model in the overlap lattice formulation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.