Cutoffβeffects in the spectrum of dynami
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M. Della Morte; R. Hoffmann; F. Knechtli; U. Wolff
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Article
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2005
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Elsevier Science
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English
β 128 KB
We investigate the low-lying eigenvalues of the improved Wilson-Dirac operator in the SchrΓΆdinger 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