Vacuum structure as seen by overlap fermions

Journal Article · Tue Feb 27 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714368· OSTI ID:21056803

Ilgenfritz, E -M ^[1]; Koller, K ^[2]; Koma, Y ^[3]; Schierholz, G ^[4]; Streuer, T ^[5]; Weinberg, V ^[6]

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1. Humboldt-Universitaet zu Berlin, Institut fuer Physik, 12489 Berlin (Germany)
2. Sektion Physik, Universitaet Muenchen, 80333 Munich (Germany)
3. Institut fuer Kernphysik, Johannes-Gutenberg Universitaet Mainz, 55099 Mainz (Germany)
4. Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg (Germany)
5. Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055 (United States)
6. Deutsches Elektronen-Synchrotron DESY, 15738 Zeuthen (Germany)

Three complementary views on the QCD vacuum structure, all based on eigenmodes of the overlap operator, are reported in their interrelation: (i) spectral density, localization and chiral properties of the modes, (ii) the possibility of filtering the field strength with the aim to detect selfdual and antiselfdual domains and (iii) the various faces of the topological charge density, with and without a cutoff {lambda}cut = O({lambda}QCD). The techniques are tested on quenched SU(3) configurations.

• OSTI ID: 21056803
• Journal Information: AIP Conference Proceedings, Vol. 892, Issue 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714368; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGE DENSITY
CHIRALITY
FERMIONS
FIELD OPERATORS
LATTICE FIELD THEORY
QUANTUM CHROMODYNAMICS
SPECTRAL DENSITY
SU-3 GROUPS
TOPOLOGY
VACUUM STATES