Center vortex model for the infrared sector of YangMills theory—quenched Dirac spectrum and chiral condensate
Abstract
The Dirac operator describing the coupling of continuum quark fields to SU(2) center vortex worldsurfaces composed of elementary squares on a hypercubic lattice is constructed. It is used to evaluate the quenched Dirac spectral density in the random vortex worldsurface model, which previously has been shown to quantitatively reproduce both the confinement properties and the topological susceptibility of SU(2) YangMills theory. Under certain conditions on the modeling of the vortex gauge field, a behavior of the quenched chiral condensate as a function of temperature is obtained which is consistent with measurements in SU(2) lattice YangMills theory.
 Publication:

Nuclear Physics B
 Pub Date:
 August 2002
 DOI:
 10.1016/S05503213(02)004704
 arXiv:
 arXiv:heplat/0204002
 Bibcode:
 2002NuPhB.638...81E
 Keywords:

 High Energy Physics  Lattice
 EPrint:
 36 LaTeX pages, 13 ps figures included via epsf