[OSU Physics logo]

HEP/Astro Journal Club, Friday 21st January 2000

Domain wall fermions and chiral symmetry at strong coupling

George T. Fleming (OSU)


Abstract

Lattice studies of QCD at finite temperature are necessarily performed
at strong couplings and coarse lattice spacings due to algorithmic
and computational limitations.  For lattice fermion actions which
restore the full chiral and flavor symmetries only concurrently with
Lorentz symmetry in the continuum limit, this situation is a disaster.
The domain wall fermion lattice action allows the chiral limit to be
taken independent of the continuum limit at the price of one to two
orders of magnitude increase in computational cost.  We explore whether
this is sufficient and discuss work in progress on new formulations
to improve the situation.

References:

DOMAIN WALL FERMIONS IN VECTOR THEORIES.
P.M. Vranas, hep-lat/0001006

DYNAMICAL LATTICE QCD THERMODYNAMICS WITH DOMAIN WALL FERMIONS,
G.T. Fleming, hep-ph/9910453

HOW WELL DO DOMAIN WALL FERMIONS REALIZE CHIRAL SYMMETRY?,
G.T. Fleming, hep-lat/9909140

Note time 12:30pm, Smith Lab 4079


Jens O. Andersen( jensoa@pacific.mps.ohio-state.edu), last updated 27-APRIL-99.