Diseases with rooted staggered quarks

Michael Creutz

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arXiv · hep-lat/0608020

Diseases with rooted staggered quarks

Michael Creutz

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Abstract

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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Michael Creutz. 2006-08-28. Diseases with rooted staggered quarks. https://arxiv.org/abs/hep-lat/0608020

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