Diseases with rooted staggered quarks

Details Diseases with rooted staggered quarks Diseases with rooted staggered quarks

2006-08-28

arxiv.org/abs/hep-lat/0608020v1

PoSLAT2006:208,2006

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 1 figure; poster at LATTICE '06, Tucson, Arizona, July 23-28, 2006

Scientific paper

Calculations using staggered quarks augmented with a root of the fermion
determinant to reduce doubling give a qualitatively incorrect behavior in the
small quark mass region. Attempts to circumvent this problem for the continuum
limit involve an unproven combination of unphysical states, a loss of
unitarity, and a rather peculiar non-commutation of limits.

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