Evaporating black-holes, wormholes, and vacuum polarisation: must they always conserve charge?

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Title: Evaporating black-holes, wormholes, and vacuum polarisation: must they always conserve charge?
Authors: Gratus, J
Kinsler, P
McCall, M
Item Type: Journal Article
Abstract: A careful examination of the fundamentals of electromagnetic theory showsthat due to the underlying mathematical assumptions required for Stokes’ Theorem,global charge conservation cannot be guaranteed in topologically non-trivial space-times. However, in order to break the charge conservation mechanism we must alsoallow the electromagnetic excitation fieldsD,Hto possess a gauge freedom, just asthe electromagnetic scalar and vector potentialsφandAdo. This has implicationsfor the treatment of electromagnetism in spacetimes where black holes both form andthen evaporate, as well as extending the possibilities for treating vacuum polarisation.Using this gauge freedom ofD,Hwe also propose an alternative to the acceptednotion that a charge passing through a wormhole necessarily leads to an additional(effective) charge on the wormhole’s mouth.
Issue Date: 1-Jan-2019
Date of Acceptance: 27-Feb-2019
URI: http://hdl.handle.net/10044/1/68181
ISSN: 0015-9018
Publisher: Springer (part of Springer Nature)
Journal / Book Title: Foundations of Physics
Keywords: 01 Mathematical Sciences
02 Physical Sciences
22 Philosophy And Religious Studies
Nuclear & Particles Physics
Publication Status: Accepted
Embargo Date: 2020-01-01
Appears in Collections:Physics
Faculty of Natural Sciences

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