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Title: On gauge freedom and subsystems in quantum electrodynamics
Author: Stokes, Adam
ISNI:       0000 0004 5349 6847
Awarding Body: University of Leeds
Current Institution: University of Leeds
Date of Award: 2014
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I analyse different decompositions of composite light-matter systems into constituent subsystems. I show that given a single description of a composite atomfield system, many different decompositions into “atom” and “field” subsystems can be made. I show that these decompositions are generally physically inequivalent, and that they can be understood as corresponding to different choices of gauge. I discuss some of the implications this has for the ontology of QED, and find experimental signatures that could be used to distinguish between different theoretical subsystem decompositions.
Supervisor: Beige, Almut Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available