| Texto completo | |
| Autor(es): |
Graef, L. L.
;
Brandenberger, R.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Cosmology and Astroparticle Physics; v. N/A, n. 10, p. 10-pg., 2015-10-01. |
| Resumo | |
Standard inflationary models yield a characteristic signature of a primordial power spectrum with a red tensor and scalar tilt. Nevertheless, Cannone et al. [1] recently suggested that, by breaking the assumption of spatial diffeomorphism invariance in the context of the effective field theory of inflation, a blue tensor spectrum can be achieved without violating the Null Energy Condition. In tins context, we explore in which cases the inflationary model of [1] can yield a blue tilt of the tensor modes along with a red tilt in the scalar spectrum. Ultimately, we analyze under which conditions the model of [1] can reproduce the specific consistency relation of String Gas Cosmology. (AU) | |
| Processo FAPESP: | 12/09380-8 - Decaimento do vácuo, inflação morna e conexões com o atual estágio acelerado do universo: aspectos conceituais e testes observacionais |
| Beneficiário: | Leila Lobato Graef |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |