Pregled bibliografske jedinice broj: 189890
Instanton Dominance of Topological Charge Fluctuations in QCD?
Instanton Dominance of Topological Charge Fluctuations in QCD? // Physical review. D, Particles and fields, 65 (2001), 1; 014506, 5 doi:10.1103/PhysRevD.65.014506 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 189890 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Instanton Dominance of Topological Charge Fluctuations in QCD?
Autori
Hip, Ivan ; Lippert, Thomas ; Neff, Hartmut ; Schilling, Klaus ; Schroers, Wolfram
Izvornik
Physical review. D, Particles and fields (0556-2821) 65
(2001), 1;
014506, 5
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Dirac operators ; eigenvectors ; instantons
Sažetak
We consider the local chirality of near-zero eigenvectors from Wilson-Dirac and clover improved Wilson-Dirac lattice operators as proposed recently by Horvath et al. We studied finer lattices and repaired for the loss of orthogonality due to the non-normality of the Wilson-Dirac matrix. As a result we do see a clear double peak structure on lattices with resolutions higher than 0.1 fm. We found that the lattice artifacts can be considerably reduced by exploiting the biorthogonal system of left and right eigenvectors. We conclude that the dominance of instantons on topological charge fluctuations is not ruled out by local chirality measurements.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
