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04.09.2018 / 16:00 - 17:00 / Hamburg, bldg. 1b, seminar room 3a
SeminarWavepackets on de Sitter spacetime
Marcos C. Brum de Oliveira (University of São Paulo)
We construct wavepackets on de Sitter spacetime, with masses consistently defined from the eigenvalues of an irreducible representation of a Casimir element in the universal enveloping algebra of the Lorentz algebra and analyze their asymptotic behaviour. Furthermore, we show that, in the limit as the de Sitter radius tends to infinity, the wavepackets tend to the wavepackets of Minkowski spacetime and the plane waves arising after contraction have support sharply located on the mass shell.
