Abstract (EN):
A model for noncommutative scalar fields coupled to gravity based on the generalization of the Moyal product is proposed. Solutions compatible with homogeneous and isotropic flat Robertson-Walker spaces to first non-trivial order in the perturbation of the star-product are presented. It is shown that in the context of a typical chaotic inflationary scenario, at least in the slow-roll regime, noncommutativity yields no observable effect.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Contacto:
orfeu@cosmos.ist.utl.pt
Nº de páginas:
11