Aspects of nonlinear effect on black hole superradiance
Hajime Fukuda, Kazunori Nakayama
Abstract
A bstract Under some conditions, light boson fields grow exponentially around a rotating black hole, called the superradiance instability. We discuss effects of nonlinear interactions of the boson on the instability. In particular, we focus on the effect of the particle production and show that the growth of the boson cloud may be saturated much before the black hole spin is extracted by the boson cloud, while the nonlinear interactions also induce the boson emission. For application, we revisit the superradiant instability of the standard model photon, axion and hidden photon.
Topics & Concepts
PhysicsSuperradianceBosonAxionBlack hole (networking)Nonlinear systemQuantum electrodynamicsScalar bosonQuantum mechanicsParticle physicsRotating black holeParticle (ecology)Vector bosonExtremal black holeStandard Model (mathematical formulation)InstabilityCosmologyInteracting boson modelTheoretical physicsBlack Holes and Theoretical PhysicsQuantum Electrodynamics and Casimir EffectAstrophysical Phenomena and Observations