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Lookup NU author(s): Professor Ian Moss
In the context of quantum field theory, an anomaly exists when a theory has a classical symmetry which is not a symmetry of the quantum theory. This short exposition aims at introducing a new point of view, which is that the proper setting for anomaly calculations is the 'in-in', or closed-time path formulation of quantum field theory. There are also some new results for anomalies in the context of boundary value problems, and a new correction to the a(5) heat-kernel coefficient. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical in honour of Stuart Dowker's 75th birthday devoted to 'Applications of zeta functions and other spectral functions in mathematics and physics'.
Author(s): Moss IG
Publication type: Article
Publication status: Published
Journal: Journal of Physics A: Mathematical and Theoretical
Print publication date: 04/09/2012
Date deposited: 16/11/2012
ISSN (print): 1751-8113
ISSN (electronic): 1751-8121
Publisher: Institute of Physics Publishing Ltd.
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