Seminars this week

20200930T150000 20200930T155000 Cosmology, Relativity and Gravitation (Visakan Balakumar) Speaker: Visakan Balakumar (Sheffield)\n Home page: http://maths.dept.shef.ac.uk/maths/staff_info_834.html\n Title: Quantum superradiance on static black hole space-times \n URL: /maths/sem_week.html?id=3511\n

Cosmology, Relativity and Gravitation

Visakan Balakumar (Sheffield)

Quantum superradiance on static black hole space-times

Wednesday, 30 September at 15:00
Blackboard Collaborate

Abstract

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.

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20201001T160000 20201001T165000 Plasma Dynamics Group (Rekha Jain) Speaker: Rekha Jain (Sheffield)\n Home page: http://rekha-jain.staff.shef.ac.uk\n Title: \n URL: /maths/sem_week.html?id=3549\n

Plasma Dynamics Group

Rekha Jain (Sheffield)

Thursday, 1 October at 16:00
https://meet.google.com/chc-nxsh-xcz
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20201002T130000 20201002T135000 SP2RC seminar Speaker: \n Title: \n URL: /maths/sem_week.html?id=3532\n

SP2RC seminar

Friday, 2 October at 13:00
LT 11
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