A better conditioned Domain Wall Operator
High Energy Physics - Lattice
2017-01-12 v3
Abstract
A variation of the Domain Wall operator with an additional parameter alpha will be introduced. The conditioning of the new Domain Wall operator depends on alpha, whereas the corresponding 4D propagator does not. The new and the conventional Domain Wall operator agree for alpha = 1. By tuning alpha, speed ups of the linear system solvers of around 20% could be achieved.
Cite
@article{arxiv.1501.04950,
title = {A better conditioned Domain Wall Operator},
author = {Hartmut Neff},
journal= {arXiv preprint arXiv:1501.04950},
year = {2017}
}
Comments
13 pages, 8 figures. Corrected the mass dependence of R_1 in Eq.35 and Eq.36. Added a comment about the order of Zolotarev coefficients