Proca Q Balls and their Coupling to Gravity

Abstract

Extending the Proca Lagrangian of a massive complex-valued vector field by self-interaction potential, we construct a large class of spherically symmetric solutions in flat Minkowski background as well as in the self-gravitating case. Our solutions encompass Proca Q-balls and Proca stars known in the literature, but present new features and go beyond the limited region of parameter space charted so far. A special emphasis is set to the domain of existence of the solutions in relation with the coupling constants of the potential and to the critical phenomena limiting this domain.

revised version; to appear in PRD

References in corpus (7)

• A Theory of Dark Matter
• Numerical evolutions of spherical Proca stars
• Charged Proca Stars
• Radial excitations of Q-balls, and their D-term
• Asymptotically anti-de Sitter Proca Stars
• Proca Q Tubes and their Coupling to Gravity
• Einstein-Proca Model, Micro Black Holes, and Naked Singularities

Cited by in corpus (12)

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• Proca-Higgs balls and stars in a UV completion for Proca self-interactions
• Fermion Proca Stars: Vector Dark Matter Admixed Neutron Stars
• Treatments and placebos for the pathologies of effective field theories
• Horndeski Proca stars with vector hair
• Highly compact Proca stars with quartic self-interactions
• Nonrelativistic Proca stars: Spherical stationary and multi-frequency states
• Linear stability of nonrelativistic Proca stars
• The intrinsic pathology of self-interacting vector fields
• Proca Q-balls and Q-shells
• Nontopological Electromagnetic Hedgehogs