Probing the QCD vacuum with overlap fermions

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We use low lying eigenvectors of the overlap-Dirac operator as a probe of the QCD vacuum. If instantons play a significant role one would expect the low lying eigenmodes of the overlap-Dirac operator to consist mainly of the mixed ``would be zero modes''. Then, the eigenmodes should exhibit local chirality. Studying a recently introduced local chirality parameter, we find evidence supporting this picture.

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Edwards, Robert G. & Heller, Urs M. November 1, 2001.

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We use low lying eigenvectors of the overlap-Dirac operator as a probe of the QCD vacuum. If instantons play a significant role one would expect the low lying eigenmodes of the overlap-Dirac operator to consist mainly of the mixed ``would be zero modes''. Then, the eigenmodes should exhibit local chirality. Studying a recently introduced local chirality parameter, we find evidence supporting this picture.

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160 Kilobytes pages

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  • Report No.: JLAB-THY-01-37
  • Report No.: DOE/ER/40150-1961
  • Report No.: hep-lat/0111055
  • Report No.: FSU-CSIT-01-61
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 789465
  • Archival Resource Key: ark:/67531/metadc716966

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  • November 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:55 p.m.

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Edwards, Robert G. & Heller, Urs M. Probing the QCD vacuum with overlap fermions, article, November 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc716966/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.