Kobayashi, T. (2012). Density Perturbations from Curvatons Revisited. Perimeter Institute for Theoretical Physics. https://pirsa.org/12040058
MLA
Kobayashi, Takeshi. Density Perturbations from Curvatons Revisited. Perimeter Institute for Theoretical Physics, Apr. 24, 2012, https://pirsa.org/12040058
BibTex
@misc{ scivideos_PIRSA:12040058,
doi = {10.48660/12040058},
url = {https://pirsa.org/12040058},
author = {Kobayashi, Takeshi},
keywords = {Cosmology},
language = {en},
title = {Density Perturbations from Curvatons Revisited},
publisher = {Perimeter Institute for Theoretical Physics},
year = {2012},
month = {apr},
note = {PIRSA:12040058 see, \url{https://scivideos.org/index.php/pirsa/12040058}}
}
The curvaton scenario provides a simple explanation for the generation of the cosmological perturbations, however most works have focused on cases with rather trivial curvaton energy potentials, e.g. quadratic ones. In this talk I will present the rich phenomenology of curvatons by showing that non-quadratic curvatons exhibit new behaviors, leading to interesting signals in the resulting density perturbations. A string theory realization of the curvaton scenario will also be discussed, where D-branes located in a warped throat region of the internal space play the role of curvatons.