Speaker
Mr
Greg McGlynn
(Columbia University)
Description
We discuss algorithmic improvements being used in the evolution of new 2+1+1 flavor lattices by the RBC/UKQCD collaboration. A technique similar to Hasenbusch mass splitting and suggested previously by Brower, Neff, and Orginos allows the light quark action to be split into multiple parts with different values of L_s, the size of the fifth dimension. This allows us to reduce chiral symmetry breaking by making L_s large while most inversions are actually done at a cheaper, smaller value of L_s.
Primary author
Mr
Greg McGlynn
(Columbia University)
