Exploring the structure of the quenched QCD vacuum with overlap fermions

Journal Article · Wed Aug 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.034506· OSTI ID:21027522

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

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1. Institut fuer Physik, Humboldt Universitaet zu Berlin, 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, Kentucky 40506-0055 (United States)
6. Deutsches Elektronen-Synchrotron DESY, 15738 Zeuthen (Germany)

Overlap fermions have an exact chiral symmetry on the lattice and are thus an appropriate tool for investigating the chiral and topological structure of the QCD vacuum. We study various chiral and topological aspects of quenched gauge field configurations. This includes the localization and chiral properties of the eigenmodes, the local structure of the ultraviolet-filtered field strength tensor, as well as the structure of topological charge fluctuations. We conclude that the vacuum has a multifractal structure.

• OSTI ID: 21027522
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevD.76.034506; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
FERMIONS
FLUCTUATIONS
GAUGE INVARIANCE
QUANTUM CHROMODYNAMICS
TENSORS
TOPOLOGY
VACUUM STATES