Cutoff-effects in the spectrum of dynamical Wilson fermions

M. Della Morte, R. Hoffmann, F. Knechtli, U. Wolff

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

We investigate the low-lying eigenvalues of the improved Wilson-Dirac operator in the Schroedinger functional with two dynamical quark flavors. At a lattice spacing of approximately 0.1 fm we find more very small eigenvalues than in the quenched case. These cause problems with HMC-type algorithms and in the evaluation of fermionic correlation functions. Through a simulation at a finer lattice spacing we are able to establish their nature as cutoff-effects
OriginalsprogUdefineret/Ukendt
TidsskriftNuclear Physics, Section B
ISSN0550-3213
DOI
StatusUdgivet - 1. sep. 2004

Bibliografisk note

Lattice2004(machines), 3 pages, 3 figures, talk by R.H

Emneord

  • hep-lat

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