Fourth root prescription for dynamical staggered fermions

David H. Adams
Phys. Rev. D 72, 114512 – Published 22 December 2005

Abstract

With the aim of resolving theoretical issues associated with the fourth root prescription for dynamical staggered fermions in lattice QCD simulations, we consider the problem of finding a viable lattice Dirac operator D such that (detDstaggered)1/4=detD. Working in the flavor field representation we show that in the free field case there is a simple and natural candidate D satisfying this relation, and we show that it has acceptable locality behavior: exponentially local with a localization range vanishing a/m for lattice spacing a0. Prospects for the interacting case are also discussed, although we do not solve this case here.

  • Figure
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  • Received 10 September 2005

DOI:https://doi.org/10.1103/PhysRevD.72.114512

©2005 American Physical Society

Authors & Affiliations

David H. Adams*

  • Instituut-Lorentz for Theoretical Physics, Leiden University, Niels Bohrweg 2, NL-2333 CA Leiden, The Netherlands, National Center for Theoretical Sciences, National Taiwan University, Taipei 106, Taiwan, Republic of China, and Physics Department, Florida International University, 11200 SW 8th Street, Miami, Florida 33199, USA†

  • *Email address: adams@lorentz.leidenuniv.nl
  • Current address.

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Issue

Vol. 72, Iss. 11 — 1 December 2005

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