Universality check of the overlap fermions in the Schroedinger functional

Details Universality check of the overlap fermions in the Schroedinger functional Universality check of the overlap fermions in the Schroedinger functional

2008-08-21

arxiv.org/abs/0808.2919v1

PoS LATTICE2008:218,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk given at the XXVI International Symposium on Lattice Field Theory, July 14-19 Williamsburg, Virginia,

Scientific paper

I examine some properties of the overlap operator in the Schroedinger functional formulated by Luescher at perturbative level. By investigating spectra of the free operator and one-loop coefficient of the Schroedinger functional coupling, I confirm the universality at tree and one-loop level. Furthermore, I address cutoff effects of the step scaling function and it turns out that the lattice artifacts for the overlap operator are comparable with those of the clover actions.

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