Quantum superradiance on static black hole space-times
Visakan Balakumar, Elizabeth Winstanley, Rafael P. Bernar, Luís C. B. Crispino
Abstract
We study the quantum analogue of the classical process of superradiance for a massless charged scalar field on a static charged black hole space-time. We show that an “in” vacuum state, which is devoid of particles at past null infinity, contains an outgoing flux of particles at future null infinity. This radiation is emitted in the superradiant modes only, and is nonthermal in nature.
Topics & Concepts
SuperradiancePhysicsMassless particleScalar fieldQuantum mechanicsQuantum electrodynamicsQuantumQuantum field theoryInfinityNull (SQL)Classical mechanicsLaserMathematicsMathematical analysisComputer scienceDatabaseBlack Holes and Theoretical PhysicsQuantum Electrodynamics and Casimir EffectCosmology and Gravitation Theories