AVVISO DI SEMINARIO
Giovedì 19 aprile 2018 - ore 15:00
Dipartimento di Fisica - Largo B.Pontecorvo, 3
Aula 230 - primo piano - Ed. C
(Università di Zurigo)
Terrà un seminario dal titolo:
"Observing the light-cone in the era of Large-Scale Structures cosmology: the GLC gauge"
Abstract: Cosmology is moving towards a new era where an unprecedented precise dataset about Large-Scale Structures will be available. Most of these forthcoming observations will regard late time dynamics of inhomogeneities on cosmological scales, when non-linear effects play a crucial role also in the understanding of gravity on larger scales. Having this in mind, in this talk I will present the most recent results obtained so far in the theoretical estimation of non-linear corrections to the next-generation surveys. In particular, I will review the progress obtained within the so-called Geodesic-Light Cone (GLC) gauge, which allows to obtain exact fully non-linear results along the past light-cone of a given observer. Moreover, I will discuss also the theoretical properties of the GLC and I will exploit their relevance for the well-posed comparison with observations.