Speaker
Robert Mawhinney
(Columbia University)
Description
The RBC and UKQCD Collaborations are generating 2+1+1 flavor Mobius
domain wall fermion configurations with $1/a = 3$ and 4 GeV. To
achieve good topological tunneling at these weaker couplings, the
gauge action is the Wilson action plus a Dislocation Enhancing
Determinant (DED) term. The DED term enhances the probability of
gauge fields where toplogy-changing dislocations are present, through
the inverse of the effect produced by the Dislocation Suppressing
Determinant Ratio (DSDR) we have employed in strong coupling domain
wall fermion simulations. Tests and consequences of the DED term will
be discussed and some preliminary results of measurements on these
lattices will be given.
Primary author
Robert Mawhinney
(Columbia University)
