Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2004-11-30
Phys.Rev. D71 (2005) 094508
Physics
High Energy Physics
High Energy Physics - Lattice
10 pages, 11 Figures, Final version
Scientific paper
10.1103/PhysRevD.71.094508
The spectral properties of a variety of improved staggered operators are studied in quenched QCD. The systematic dependence of the infrared eigenvalue spectrum on i) improvement in the staggered operator, ii) improvement in the gauge field action, iii) lattice spacing and iv) lattice volume, is analyzed. It is observed that eigenmodes with small eigenvalues and large chirality appear as the level of improvement increases or as one approaches the continuum limit. These eigenmodes can be identified as the ``zero modes'' which contribute to the chirality associated, via the index theorem, with the topology of the background gauge field. This gives evidence that staggered fermions are sensitive to gauge field topology. After successfully identifying these would-be chiral zero modes, the distribution of the remaining non-chiral modes is compared with the predictions of Random Matrix Theory in different topological sectors. Satisfactory agreement is obtained.
Woloshyn Richard M.
Wong Kit Yan
No associations
LandOfFree
Systematics of Staggered Fermion Spectral Properties and Topology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Systematics of Staggered Fermion Spectral Properties and Topology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systematics of Staggered Fermion Spectral Properties and Topology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-477103