Seminars this week
Cosmology, Relativity and Gravitation
Visakan Balakumar (Sheffield)
Quantum superradiance on static black hole space-timesWednesday, 30 September at 15:00
We study the quantum analogue of the classical process of superradiance for a massless charged scalar field on a 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.
Plasma Dynamics Group
Rekha Jain (Sheffield)
Thursday, 1 October at 16:00