Charged-spinning-gravitating Q-balls

Details Charged-spinning-gravitating Q-balls Charged-spinning-gravitating Q-balls

2009-07-06

arxiv.org/abs/0907.0913v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, 7 figures

Scientific paper

We consider the lagrangian of a self-interacting complex scalar field admitting generically Q-balls solutions. This model is extended by minimal coupling to electromagnetism and to gravity. A stationnary, axially-symmetric ansatz for the different fields is used in order to reduce the classical equations. The system of non-linear partial differential equations obtained becomes a boundary value problem by supplementing a suitable set of boundary conditions. We obtain numerical evidences that the angular excitations of uncharged Q-balls, which exist in flat space-time, get continuously deformed by the Maxwell and the Einstein terms. The electromagnetic and gravitating properties of several solutions, including the spinning Q-balls, are emphasized.

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