Published March 2005 | Version v1
Journal article Metadata-only

A comparative study of overlap and staggered fermions in QCD

Creators

  • 1. DESY Zeuthen, Platanenallee 6, D-15738 Zeuthen (Germany)
  • 2. Centre de Physique Theorique, Unite Mixte de Recherche, UMR 6207, du CNRS et des Universites Aix Marseille 1, Aix Marseille 2 et sud Toulon-Var, affiliee a la FRUMAM. , Case 907, CNRS Luminy, F-13288 Marseille Cedex 9 (France)
  • 3. NIC/DESY Zeuthen, Platanenallee 6, D-15738 Zeuthen (Germany)

Description

We perform a comparative study of the infrared properties of overlap and staggered fermions in QCD. We observe that the infrared spectrum of the APE/HYP improved staggered Dirac operator develops a four-fold near-degeneracy and is in quantitative agreement with the infrared spectrum of the overlap operator. The neardegeneracy allows us to identify the zero modes of the staggered operator and we find that the number of zero modes is in line with the topological index of the overlap operator

Additional details

Identifiers

DOI
10.1016/j.nuclphysbps.2004.11.291;
arXiv
arXiv:hep-lat/0409108v1;
PII
S0920-5632(04)00798-4;

Publishing Information

Journal Title
Nuclear Physics. B, Proceedings Supplements
Journal Volume
140
Journal Page Range
p. 677-679
ISSN
0920-5632
CODEN
NPBSE7

Conference

Title
22. international symposium on lattice field theory
Acronym
LATTICE 2004
Dates
21-26 Jun 2004
Place
Batavia, IL (United States)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37102669
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DIRAC OPERATORS; FERMIONS; LATTICE FIELD THEORY; QUANTUM CHROMODYNAMICS; TOPOLOGY
Descriptors DEC
CONSTRUCTIVE FIELD THEORY; FIELD THEORIES; MATHEMATICAL OPERATORS; MATHEMATICS; QUANTUM FIELD THEORY; QUANTUM OPERATORS

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.