10–12 oct. 2023
LPENS
Fuseau horaire Europe/Paris

Michael Volkov (IDP Tours): Black holes with electroweak hair

10 oct. 2023, 15:00
20m
Salle Jean Jaurès (LPENS)

Salle Jean Jaurès

LPENS

29 rue d'Ulm 75005 Paris

Orateur

Mikhail Volkov (Institut Denis Poisson, UMR-CNRS 7013, Université de Tours,)

Description

We review the recent progress in constructing hairy black holes
in the Einstein-Weinberg-Salam theory. These black holes
are static and axially symmetric, they carry a magnetic charge
and support non-linear Yang-Mills and Higgs fields outside the event
horizon. Depending on the value of the magnetic charge, their mass and
size vary from Planck values up to values typical for planetary mass
black holes. Close to the horizon the electroweak symmetry is restored
and geometry is Reissner-Nordstrom-de Sitter. The non-linear fields
form an "electroweak corona" located far away from the horizon in the
region where the geometry is almost flat. These solutions provide the
first example of hairy black holes in a genuinely physical theory.

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