Exploring the structure of the quenched QCD vacuum with overlap fermions

E.-M. Ilgenfritz (Humboldt-U. Berlin); G. Schierholz (DESY Hamburg; K. Koller (LMU Muenchen); NIC Zeuthen); T. Streuer (U. Kentucky); V. Weinberg (DESY Zeuthen); Y. Koma (U. Mainz)

Exploring the structure of the quenched QCD vacuum with overlap fermions

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arxiv 0705.0018 v1 pith:ZNX5KQ2V submitted 2007-04-30 hep-lat hep-phhep-th

E.-M. Ilgenfritz (Humboldt-U. Berlin) , K. Koller (LMU Muenchen) , Y. Koma (U. Mainz) , G. Schierholz (DESY Hamburg , NIC Zeuthen) , T. Streuer (U. Kentucky) , V. Weinberg (DESY Zeuthen) This is my paper · ORCID

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keywords structurechiraltopologicalvacuumfermionsfieldoverlapquenched

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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.

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