München 2006 – wissenschaftliches Programm
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GR: Gravitation und Relativitätstheorie
GR 201: Einstein-Yang-Mills-Higgs, Skyrmionen und Bosonensterne
GR 201.4: Vortrag
Dienstag, 21. März 2006, 11:50–12:10, K
Gravitating Multi-Skyrmions — •Burkhard Kleihaus1, Theodora Ioannidou2, and Jutta Kunz1 — 1Universität Oldenburg — 2Aristotle University of Thessaloniki
Gravitating multi-Skyrmion configurations with either discrete platonic symmetry or axial symmetry are investigated numerically. We use the harmonic map Ansatz for the Skyrmion field and a simplified Ansatz for the metric to obtain approximate solutions of multi-Skyrmions coupled to gravity. These solutions are static and asymptotically flat. The symmetry of the solutions is imposed by the choice of the harmonic map. We present axially symmetric solutions with baryon number B=2,3,4, as well as the tetrahedral B=3 and cubic B=4 solutions. We show that for fixed baryon number (and given symmetry) two branches of gravitating multi-Skyrmions exist, which merge at a maximal value of the coupling parameter.