Simulating Full QCD with the Fixed Point Action

Details Simulating Full QCD with the Fixed Point Action Simulating Full QCD with the Fixed Point Action

2005-06-25

arxiv.org/abs/hep-lat/0506024v2

Phys.Rev. D72 (2005) 114508

Physics

High Energy Physics

High Energy Physics - Lattice

21 pages, 5 figures; New references added

Scientific paper

10.1103/PhysRevD.72.114508

Due to its complex structure the parametrized fixed point action can not be simulated with the available local updating algorithms. We constructed, coded, and tested an updating procedure with 2+1 light flavors, where the targeted s-quark mass is at its physical value while the u- and d-quarks should produce pions lighter than 300MeV. In the algorithm a partially global gauge update is followed by several accept/reject steps, where parts of the determinant are switched on gradually in the order of their expenses. The trial configuration that is offered in the last, most expensive, stochastic accept/reject step differs from the original configuration by a Metropolis + over-relaxation gauge update over a sub-volume of ~(1.3 fm)^4. The acceptance rate in this accept/reject step is ~0.4. The code is optimized on different architectures and is running on lattices with L=1.2fm and 1.8fm at a resolution of a=0.15fm.

Affiliated with

Also associated with

No associations

Rating

Simulating Full QCD with the Fixed Point Action 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 Simulating Full QCD with the Fixed Point Action, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulating Full QCD with the Fixed Point Action will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-273129