Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2002-04-03
Nucl.Phys. B638 (2002) 81-110
Physics
High Energy Physics
High Energy Physics - Lattice
36 LaTeX pages, 13 ps figures included via epsf; minor reformulations and added cross-referencing for the purpose of clarity
Scientific paper
10.1016/S0550-3213(02)00470-4
The Dirac operator describing the coupling of continuum quark fields to SU(2) center vortex world-surfaces composed of elementary squares on a hypercubic lattice is constructed. It is used to evaluate the quenched Dirac spectral density in the random vortex world-surface model, which previously has been shown to quantitatively reproduce both the confinement properties and the topological susceptibility of SU(2) Yang-Mills 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 Yang-Mills theory.
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