23–28 Jun 2014
Columbia University
US/Eastern timezone

Update on staggered Wilson fermions

25 Jun 2014, 09:40
20m
329 Pupin

329 Pupin

Talk Theoretical Developments Theoretical Developments

Speaker

David Adams (Nanyang Technological University)

Description

An update on our ongoing research on staggered Wilson fermions (a 2-flavor staggered version of Wilson fermions) will be given. Previously we found that this formulation is 4-6 times more efficient than usual Wilson fermions for inverting the Dirac matrix in quenched backgrounds of a 16^3 x 32 lattice at beta=6. Further results for 20^3 x 40 lattices will be reported which reveal that the efficiency increases notably with decreasing lattice spacing at fixed physical volume and also increases slightly with increasing volume at fixed lattice spacing. Construction of meson (and baryon) operators for this formulation will also be described, and numerical results for the pseudoscalar meson spectrum will be presented if they are ready in time.

Primary author

David Adams (Nanyang Technological University)

Co-authors

Mr Christian Zielinski (Nanyang Technological University, Division of Mathematical Sciences) Dr Daniel Nogradi (Eotvos University)

Presentation materials