Density Perturbations from Curvatons Revisited
APA
Kobayashi, T. (2012). Density Perturbations from Curvatons Revisited. Perimeter Institute. https://pirsa.org/12040058
MLA
Kobayashi, Takeshi. Density Perturbations from Curvatons Revisited. Perimeter Institute, Apr. 24, 2012, https://pirsa.org/12040058
BibTex
@misc{ pirsa_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}, year = {2012}, month = {apr}, note = {PIRSA:12040058 see, \url{https://pirsa.org}} }
SISSA International School for Advanced Studies
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Abstract
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.