High Energy Physics News & Events

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Minimum length scale and quantum black holes

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Speaker
Roberto Casadio (Bologna University and INFN)
Event date
Venue
Online (only)
Event type

The idea that the Planck length can act as a regulator of UV divergences has inspired various approaches to quantum gravity, but a possibly much larger width for the ground state emerges in the (non-perturbative) quantisation of the Oppenheimer-Snyder model of dust collapse that naturally recovers Bekenstein’s area law.

Quantisation of a charged scalar field on Reissner-Nordström spacetime

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Speaker
Visakan Balakumar (Sheffield University)
Event date
Venue
Online (only)
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It is well known that a classical charged scalar field on Reissner-Nordström spacetime undergoes superradiant scattering. By quantising the field, via canonical quantisation, we investigate the subtleties that superradiant scattering presents in the quantisation of the field.