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Decorrelating topology with HMC

The investigation of the decorrelation efficiency of the HMC algorithm with respect to vacuum topology is a prerequisite for trustworthy full QCD simulations, in particular for the computation of topology sensitive quantities. We demonstrate that for m π m ρ -ratios ≥ 0.69 sufficient tunneling betwe...

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Bibliographic Details
Published in:Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 1999-03, Vol.73 (1), p.521-523
Main Authors: Lippert, Th, Allés, B., Bali, G., D'Elia, M., Di Giacomo, A., Eicker, N., Güsken, S., Schilling, K., Spitz, A., Struckmann, T., Ueberholz, P., Viehoff, J.
Format: Article
Language:English
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Summary:The investigation of the decorrelation efficiency of the HMC algorithm with respect to vacuum topology is a prerequisite for trustworthy full QCD simulations, in particular for the computation of topology sensitive quantities. We demonstrate that for m π m ρ -ratios ≥ 0.69 sufficient tunneling between the topological sectors can be achieved, for two flavours of dynamical Wilson fermions close to the scaling region (β = 5.6). Our results are based on time series of length 5000 trajectories.
ISSN:0920-5632
1873-3832
DOI:10.1016/S0920-5632(99)85124-X