Computational methods for UV-suppressed fermions

Authors:
Artan Boriçi
Affiliations:
Department of Physics, University of Edinburgh, James Clerk Maxwell Building, Office rm. 4408, Mayfield Road, Edinburgh EH9 3JZ, UK
Venue:
Journal of Computational Physics
Year:
2003

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Abstract

Lattice fermions with suppressed high momentum modes solve the ultraviolet slowing down problem in lattice QCD. This paper describes a stochastic evaluation of the effective action of such fermions. The method is a based on the Lanczos algorithm and it is shown to have the same complexity as in the case of standard fermions.