Simulating the Schroedinger functional with two pseudo-fermions

Details Simulating the Schroedinger functional with two pseudo-fermions Simulating the Schroedinger functional with two pseudo-fermions

2003-07-07

arxiv.org/abs/hep-lat/0307008v2

Comput.Phys.Commun. 156 (2003) 62-72

Physics

High Energy Physics

High Energy Physics - Lattice

20 pages, 6 figures, changes in section 3, figures 4 and 6 replaced, addition of appendix A

Scientific paper

10.1016/S0010-4655(03)00436-3

We report on simulations with two flavors of O(a) improved degenerate Wilson fermions with Schroedinger functional boundary conditions. The algorithm which is used is Hybrid Monte Carlo with two pseudo-fermion fields as proposed by M. Hasenbusch. We investigate the numerical precision and sensitivity to reversibility violations of this algorithm. A gain of a factor two in CPU cost is reached compared with one pseudo-fermion field due to the larger possible step-size.

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