Microscopic Dirac Spectrum in a 2d Gauge Theory with Zero Chiral Condensate (CROSBI ID 658975)
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Podaci o odgovornosti
Bietenholz, Wolfgang ; Hip, Ivan ; Landa-Marban, David
engleski
Microscopic Dirac Spectrum in a 2d Gauge Theory with Zero Chiral Condensate
Fermionic theories with a vanishing chiral condensate (in the chiral limit) have recently attracted considerable interest ; in particular variants of multi-flavour QCD are candidates for this behaviour. Here we consider the 2-flavour Schwinger model as a simple theory with this property. Based on simulations with light dynamical overlap fermions, we test the hypothesis that in such models the low lying Dirac eigenvalues could be decorrelated. That has been observed in 4d Yang-Mills theories at high temperature, but it cannot be confirmed for the 2-flavour Schwinger model. We also discuss subtleties in the evaluation of the mass anomalous dimension and its IR extrapolation.
Schwinger model, Dirac spectrum
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Podaci o prilogu
187/486
2014.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of Science - 31st International Symposium on Lattice Field Theory LATTICE 2013
Trst: Scuola Internazionale Superiore di Studi Avanzati, SISSA, Trst
Podaci o skupu
Nepoznat skup
predavanje
29.02.1904-29.02.2096