  We analyze the creation of near-zero modes from would-be zero modes of
various topological charge contributions from classical center vortices in
SU(2) lattice gauge theory. We show that colorful spherical vortex and
instanton configurations have very similar Dirac eigenmodes and also vortex
intersections are able to give rise to a finite density of near-zero modes,
leading to chiral symmetry breaking via the Banks-Casher formula. We discuss
the influence of the magnetic vortex fluxes on quarks and how center vortices
may break chiral symmetry.
