Accelerating the hybrid Monte Carlo algorithm

Khan, A. A. and Bakeyev, T. and Goeckeler, M. and Horsley, R. and Pleiter, D. and Rakow, P. and Schaefer, A. and Schierholz, G. and Stueben, H. (2003) Accelerating the hybrid Monte Carlo algorithm. PHYSICS LETTERS B, 564 (3-4). pp. 235-240. ISSN 0370-2693

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Abstract

An algorithm for separating the high- and low-frequency molecular dynamics modes in hybrid Monte Carlo (HMC) simulations of gauge theories with dynamical fermions is presented. The separation is based on splitting the pseudo-fermion action into two parts, as was initially proposed by Hasenbusch. We propose to introduce different evolution time-scales for each part. We test our proposal in realistic simulations of two-flavor O(a) improved Wilson fermions. A speed-up of more than a factor of three compared to the standard HMC algorithm is observed in a typical run. (C) 2003 Published by Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: IMPROVED WILSON FERMIONS; SPEEDING-UP; QCD; SIMULATIONS; MASSES;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 10 Aug 2021 13:20
Last Modified: 10 Aug 2021 13:20
URI: https://pred.uni-regensburg.de/id/eprint/38827

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