The Flavour projection of staggered fermions and the quarter-root trick.

Research output: Contribution to journalArticle

Abstract

It is shown that the flavour projection of staggered fermions can be written as a projection between the fields on four separate, but parallel, lattices, where the fields on each are modified forms of the standard staggered fermion field. Because the staggered Dirac operator acts equally on each lattice, it respects this flavour projection. We show that the system can be gauged in the usual fashion and that this does not interfere with flavour projection. We also consider the path integral, showing that, prior to flavour projection, it evaluates to the same form on each lattice and that this form is equal to that used in the quarter-root trick. The flavour projection leaves a path integral for a single flavour of field on each lattice.
Original languageEnglish
Pages (from-to)048
JournalJournal of High Energy Physics
Volume2007
Issue number06
DOIs
Publication statusPublished - Jun 2007

    Fingerprint

Keywords

  • staggered
  • fermions
  • quarter-root

Cite this