Phys. Rev. D 77, 094501 (2008) [9 pages]Over-improved stout-link smearingReceived 8 January 2008; revised 19 February 2008; published 5 May 2008 A new over-improved stout-link smearing algorithm, designed to stabilize instanton-like objects, is presented. A method for quantifying the selection of the over-improvement parameter, ϵ, is demonstrated. The new smearing algorithm is compared with the original stout-link smearing, and Symanzik improved smearing through calculations of the topological charge and visualizations of the topological charge density. We find the incorporation of improvement in stout-link smearing to be essential for the accurate study of QCD vacuum structure. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.77.094501
DOI:
10.1103/PhysRevD.77.094501
PACS:
12.38.Gc, 11.15.Ha, 12.38.Aw
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