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Instability in the molecular dynamics step of a hybrid Monte Carlo algorithm in dynamical fermion lattice QCD simulations

Joo, Balint; Pendleton, Brian; Kennedy, Anthony D.; Irving, Alan C.; Sexton, James C.; Pickles, Stephen M. and Booth, Stephen P. (2000) Instability in the molecular dynamics step of a hybrid Monte Carlo algorithm in dynamical fermion lattice QCD simulations. Physical Review D (PRD), 62 . Article Number: 114501. ISSN 1550-2368 (online); 1550-7998 (print)

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Official URL: http://link.aps.org/abstract/PRD/v62/e114501

Cited 27 times in WoS

Abstract

We investigate instability and reversibility within hybrid Monte Carlo simulations using a nonperturbatively improved Wilson action. We demonstrate the onset of instability as tolerance parameters and molecular dynamics step sizes are varied. We compare these findings with theoretical expectations and present limits on simulation parameters within which a stable and reversible algorithm is obtained for physically relevant simulations. Results of optimization experiments with respect to tolerance parameters are also presented.

Item Type:Article
Additional Information:LTH 454. Additional citation information: PHYSICAL REVIEW D, VOLUME 62, 114501; 0556-2821/2000/62(11)/114501(15). 15 pages. Published: Published 17 October 2000. Issue: December 2000.
Uncontrolled Keywords:WILSON FERMIONS
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
DOI:10.1103/PhysRevD.62.114501
Publisher's Statement:©2000 The American Physical Society
Related URLs:
Refereed:Yes
Status:Published
ID Code:617
Deposited On:31 Oct 2008 16:17
Last Modified:20 Mar 2012 11:07

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