Adaptive multigrid algorithm for the lattice Wilson-Dirac operator

Details Adaptive multigrid algorithm for the lattice Wilson-Dirac operator Adaptive multigrid algorithm for the lattice Wilson-Dirac operator

2010-05-17

arxiv.org/abs/1005.3043v2

Phys.Rev.Lett.105:201602,2010

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

10.1103/PhysRevLett.105.201602

We present an adaptive multigrid solver for application to the non-Hermitian Wilson-Dirac system of QCD. The key components leading to the success of our proposed algorithm are the use of an adaptive projection onto coarse grids that preserves the near null space of the system matrix together with a simplified form of the correction based on the so-called gamma_5-Hermitian symmetry of the Dirac operator. We demonstrate that the algorithm nearly eliminates critical slowing down in the chiral limit and that it has weak dependence on the lattice volume.

Affiliated with

Also associated with

No associations

Rating

Adaptive multigrid algorithm for the lattice Wilson-Dirac operator 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 Adaptive multigrid algorithm for the lattice Wilson-Dirac operator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive multigrid algorithm for the lattice Wilson-Dirac operator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-56599