Wavepackets on de Sitter Spacetime

Autor(es)

Barata, Joao C. A. ^[1] ; Brum, Marcos ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo - Brazil

^[2] Univ Fed Rio de Janeiro, Dept Matemat, Campus Duque Caxias, BR-25265970 Duque De Caxias - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Symmetry Integrability and Geometry-Methods and Applications; v. 15, 2019.
• Citações Web of Science: 0

Resumo

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 analyse 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. (AU)

• Processo FAPESP: 15/02975-4 - Aspectos matemáticos de teorias quânticas de campos em espaços-tempos curvos
• Beneficiário: Marcos Carvalho Brum de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado