90 research outputs found
Correlations between Abelian Monopoles and center vortices
We study the correlations between center vortices and Abelian monopoles for
SU() gauge group. Combining fractional fluxes of monopoles, center vortex
fluxes are constructed in the thick center vortex model. Calculating the
potentials induced by fractional fluxes constructing the center vortex flux in
a thick center vortex-like model and comparing with the potential induced by
center vortices, we observe an attraction between fractional fluxes of
monopoles constructing the center vortex flux. We conclude that the center
vortex flux is stable, as expected. In addition, we show that adding a
contribution of the monopole-antimonopole pairs in the potentials induced by
center vortices ruins the Casimir scaling at intermediate regime.Comment: 11 pages, 11 figures, Version accepted for publication in Nucl. Phys.
Center vortices as composites of monopole fluxes
We study the relation between the flux of a center vortex obtained from the
center vortex model and the flux formed between monopoles obtained from the
Abelian gauge fixing method. Motivated by the Monte Carlo simulations which
have shown that almost all monopoles are sitting on the top of vortices, we
construct the fluxes of center vortices for and gauge groups
using fractional fluxes of monopoles. Then, we compute the potentials in the
fundamental representation induced by center vortices and fractional fluxes of
monopoles. We show that by combining the fractional fluxes of monopoles one can
produce the center vortex fluxes for gauge group in a "center vortex
model". Comparing the potentials, we conclude that the fractional fluxes of
monopoles attract each other.Comment: 7 pages, 6 figures, Contribution to the conference "Quark Confinement
and the Hadron Spectrum XI", Saint Petersburg, Russia, 7-12 Sep 201
Contributions of the center vortices and vacuum domain in potentials between static sources
In this paper, we study the role of the domain structure of the Yang Mills
vacuum. The Casimir scaling and -ality are investigated in the potentials
between static sources in various representations for and gauge
groups based on the domain structure model using square ansatz for angle
. We also discuss about the contributions of the vacuum domain
and center vortices in the static potentials. As a result, the potentials
obtained from vacuum domains agree with Casimir scaling better than the ones
obtained from center vortices. The reasons of these observations are
investigated by studying the behavior of the potentials obtained from vacuum
domains and center vortices and the properties of the group factors. Then, the
vacuum domains in and gauge groups are compared and we argue
that the vacuum is filled with center vortices of its subgroups.Comment: 27 pages, 17 figures, Resolutions of two figures are improved to
conform to the version published in JHE
Plane vortex pairs, colorful structures and low-lying Dirac modes
We investigate the influence of topological charges on non-stable zero and
near-zero modes of the single uni-color plane vortex pairs. We combine the
uni-color plane vortices with the spherical vortex and also construct the plane
vortex pairs with two colorful vortices. The stability of zero and near-zero
modes is analyzed where various boundary conditions for the fermions are
checked. In addition, plane vortex pairs may show the role of the topological
charges for changing the chirality of fermions. The results clearly indicate
characteristic properties for spontaneous chiral symmetry breaking.Comment: 9 pages, 7 figures, accepted for publication in International Journal
of Modern Physics
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