Instantons and Monopoles in the Maximally Abelian Gauge

Details Instantons and Monopoles in the Maximally Abelian Gauge Instantons and Monopoles in the Maximally Abelian Gauge

1995-11-11

arxiv.org/abs/hep-lat/9511016v1

Phys.Lett. B371 (1996) 261-269

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages LaTeX plus 5 PostScript figures. Uses epsf.sty. Self-unpacking, uuencoded tar-compressed file

Scientific paper

10.1016/0370-2693(96)00017-2

We study the Abelian projection of SU(2) instantons in the Maximally Abelian gauge. We find that in this gauge an isolated instanton produces a closed monopole loop within its core and the size of this loop increases with the core size. We show that this result is robust against the introduction of small quantum fluctuations. We investigate the effects of neighbouring (anti)instantons upon each other and show how overlapping (anti)instantons can generate larger monopole loops. We find, however, that in fields that are typical of the fully quantised vacuum only some of the large monopole loops that are important for confinement have a topological origin. We comment on what this may imply for the role of instantons in confinement and chiral symmetry breaking.

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