München 2009 – wissenschaftliches Programm
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GR: Fachverband Gravitation und Relativitätstheorie
GR 5: Klassische Allgemeine Relativitätstheorie II
GR 5.1: Vortrag
Dienstag, 10. März 2009, 16:45–17:05, A214
Gravitating Sphaleron-Antisphaleron Systems — Rustam Ibadov1, Burkhard Kleihaus2, Jutta Kunz2, and •Michael Leissner2 — 1Department of Theoretical Physics and Computer Science, Samarkand State University, Samarkand, Uzbekistan — 2Institut für Physik, Universität Oldenburg, D-26111 Oldenburg, Germany
The configuration space of the bosonic sector of Yang-Mills-Higgs theory possesses non-trivial topology. This gives rise to a plethora of unstable classical solutions, such as the Klinkhamer-Manton sphaleron. Representing a saddlepoint of the energy functional between two topologically inequivalent vacua, its existence permits processes, which violate baryon number conservation.
We here present new solutions to Einstein-Yang-Mills-Higgs theory, representing gravitating sphaleron-antisphaleron pairs, chains and vortex rings. In these static axially symmetric solutions, the Higgs field vanishes on isolated points on the symmetry axis, or on rings centered around the symmetry axis.