The chiral condensate on 2-flavor staggered configurations from an overlap operator

Details The chiral condensate on 2-flavor staggered configurations from an overlap operator The chiral condensate on 2-flavor staggered configurations from an overlap operator

2006-09-28

arxiv.org/abs/hep-lat/0609070v1

PoSLAT2006:210,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk presented at Lattice 2006 (Theoretical Developments)

Scientific paper

We measure the low lying eigenmodes of an overlap Dirac operator on 2--flavor staggered configurations. By comparing the eigenmode distribution to the predictions of Random Matrix Theory we test to what accuracy staggered configurations describe continuum QCD. The agreement between the numerical data and RMT implies that at our quark mass values the lattice artifacts of the staggered configurations are comparable to overlap configurations. We identify the overlap valence mass that best matches the staggered sea quarks and predict the value of the infinite volume 2-flavor chiral condensate.

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