Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/11057
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DC Field | Value | Language |
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dc.contributor.author | Bilson-Thompson, S. | - |
dc.contributor.author | Bonnet, F. | - |
dc.contributor.author | Leinweber, D. | - |
dc.contributor.author | Williams, A. | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Nuclear Physics B - Proceedings Supplements, 2002; 109(1):116-120 | - |
dc.identifier.issn | 0920-5632 | - |
dc.identifier.uri | http://hdl.handle.net/2440/11057 | - |
dc.description | Copyright © 2002 Published by Elsevier Science B.V. All rights reserved. Copyright © 2001. Submitted to Cornell University’s online archive www.arXiv.org in 2001 by Sundance Osland Bilson-Thompson. Post-print sourced from www.arxiv.org. | - |
dc.description.abstract | The dynamics of instantons and anti-instantons in lattice QCD can be studied by analysing the action and topological charge of configurations as they approach a self-dual or anti-self-dual state, i.e. a state in which S/S_0=|Q|. We use cooling to reveal the semi-classical structure of the configurations we study. Improved actions which eliminate discretization errors up to and including O(a^4) are used to stabilise instantons as we cool for several thousand sweeps. An analogously improved lattice version of the continuum field-strength tensor is used to construct a topological charge free from O(a^4) discretization errors. Values of the action and topological charge obtained with these improved operators approach mutually-consistent integer values to within a few parts in 10^4 after several hundred cooling sweeps. Analysis of configurations with |Q| \approx 1 and |Q| \approx 2 supports the hypothesis that a self-dual |Q|=1 configuration cannot exist on the 4-torus. | - |
dc.description.statementofresponsibility | S. Bilson-Thompson, F. D. R. Bonnet, D. B. Leinweber and A. G. Williams | - |
dc.description.uri | http://www.elsevier.com/wps/find/journaldescription.cws_home/505717/description#description | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Science BV | - |
dc.source.uri | http://dx.doi.org/10.1016/s0920-5632(02)01399-3 | - |
dc.title | Cooling for instantons and the wrath of Nahm | - |
dc.type | Journal article | - |
dc.contributor.organisation | Special Research Centre for the Subatomic Structure of Matter | - |
dc.identifier.doi | 10.1016/S0920-5632(02)01399-3 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Leinweber, D. [0000-0002-4745-6027] | - |
dc.identifier.orcid | Williams, A. [0000-0002-1472-1592] | - |
Appears in Collections: | Aurora harvest 7 Special Research Centre for the Subatomic Structure of Matter publications |
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File | Description | Size | Format | |
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hdl_11057.pdf | 534.33 kB | publisher's post-print | View/Open |
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