Bonn 2001 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
GR: Gravitation und Relativitätstheorie
GR 8: Schwarze Löcher
GR 8.3: Fachvortrag
Wednesday, March 28, 2001, 14:45–15:00, VII
Gravitationally bound monopoles — •Betti Hartmann1, Burkhard Kleihaus2, and Jutta Kunz1 — 1FB8-Physik, Carl-von-Ossietzky Universität Oldenburg — 2Department of Mathematical Physics, University College, Dublin, Irland
We construct axially symmetric monopole solutions
in SU(2) Einstein-Yang-Mills-Higgs (EYMH) theory, carrying magnetic charge
n.
Whereas in flat space, there exists only a repulsive phase for like
monopoles,
in curved space there are gravitationally bound multimonopole solutions
for vanishing and small Higgs selfcoupling.
Their mass per unit charge is lower than the mass of the
gravitating n=1 monopole. For large Higgs selfcoupling though,
the gravitational attraction is not able to overcome the
repulsion of the long range magnetic field.
Black hole solutions in EYMH theory are no longer uniquely
determined by their mass and charge (for vanishing angular momentum)
and thus violate the No-dqno-hairNo-dq conjecture.
Here we construct non-abelian static axially symmetric
black hole solutions with magnetic charge n>1.
Being static and not spherically symmetric,
these black hole solutions also show, that Israel’s theorem
does not generalize to EYMH theory.
hep-th/0009195, Phys.Rev.Lett, in press