Perturbative analysis of the Neuberger-Dirac operator in the Schrödinger functional
arXiv:0712.1469 · doi:10.1016/j.nuclphysb.2007.12.020
Abstract
We investigate the spectrum of the free Neuberger-Dirac operator $\Dov$ on the Schrödinger functional (SF). We check that the lowest few eigen-values of the Hermitian operator $\Dov^†\Dov$ in unit of converge to the continuum limit properly. We also perform a one-loop calculation of the SF coupling, and then check the universality and investigate lattice artifacts of the step scaling function. It turns out that the lattice artifacts for the Neuberger-Dirac operator are comparable in those of the clover action.
22 pages 5 figures