The Scaling of Exact and Approximate Ginsparg-Wilson Fermions

Details The Scaling of Exact and Approximate Ginsparg-Wilson Fermions The Scaling of Exact and Approximate Ginsparg-Wilson Fermions

1999-02-14

arxiv.org/abs/hep-lat/9902019v2

Nucl.Phys.B570:423-451,2000

Physics

High Energy Physics

High Energy Physics - Lattice

31 pages, 21 figures, replaced by final version to appear in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(99)00477-0

We construct a number of lattice fermions, which fulfill the Ginsparg-Wilson relation either exactly or approximately, and test them in the framework of the 2-flavor Schwinger model. We start from explicit approximations within a short range, and study this formulation, as well as its correction to an exact Ginsparg-Wilson fermion by the ``overlap formula''. Then we suggest a new method to realize this correction perturbatively, without using the tedious square root operator. In this way we combine many favorable properties: good chiral behavior, small mass renormalization, excellent scaling and rotational invariance, as well as a relatively modest computational effort, which makes such formulations most attractive for QCD.

Affiliated with

Also associated with

No associations

Rating

The Scaling of Exact and Approximate Ginsparg-Wilson Fermions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Scaling of Exact and Approximate Ginsparg-Wilson Fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Scaling of Exact and Approximate Ginsparg-Wilson Fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-572432