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Gauge invariance versus masslessness in de Sitter spaces

Journal Article · · Ann. Phys. (N.Y.); (United States)
The connection between gauge invariance, masslessness and null cone propagation is a flat space property which does not persist even in constant curvature geometries. In particular, we show that both the gauge invariant spin 3/2 and 2 field in anti-de Sitter space have support inside the cone, whereas there are conformally invariant, but gauge variant, models which do rpopagate on the light cone. The Maxwell field in constant curvature spaces of dimension other than four also does not have null cone propagation: again there is a conformally invariant model which does.
Research Organization:
Department of Physics, Brandeis University, Waltham, Massachusetts 02254
OSTI ID:
6738935
Journal Information:
Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 154:2; ISSN APNYA
Country of Publication:
United States
Language:
English

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