Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Thomas Colas"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-84 (2024)
Abstract In our quest to understand the generation of cosmological perturbations, we face two serious obstacles: we do not have direct information about the environment experienced by primordial perturbations during inflation, and our observables are
Externí odkaz:
https://doaj.org/article/e39580ac1bda491fbaa50429fda2b775
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-32 (2022)
Abstract Master equations are commonly employed in cosmology to model the effect of additional degrees of freedom, treated as an “environment”, onto a given “system”. However, they rely on assumptions that are not necessarily satisfied in cos
Externí odkaz:
https://doaj.org/article/8d46d5e73a314612b6f4f0a4a5013168
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-32 (2022)
Abstract We construct the four-mode squeezed states and study their physical properties. These states describe two linearly-coupled quantum scalar fields, which makes them physically relevant in various contexts such as cosmology. They are shown to g
Externí odkaz:
https://doaj.org/article/8427bc28bc644968a67fa413a76f0884
Publikováno v:
Eur.Phys.J.C
Eur.Phys.J.C, 2022, 82 (1), pp.6. ⟨10.1140/epjc/s10052-021-09922-y⟩
Eur.Phys.J.C, 2022, 82 (1), pp.6. ⟨10.1140/epjc/s10052-021-09922-y⟩
We construct the four-mode squeezed states and study their physical properties. These states describe two linearly-coupled quantum scalar fields, which makes them physically relevant in various contexts such as cosmology. They are shown to generalise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca7fd300d160113236e65070fa230d1b
Publikováno v:
JCAP
JCAP, 2020, 06, pp.001. ⟨10.1088/1475-7516/2020/06/001⟩
JCAP, 2020, 06, pp.001. ⟨10.1088/1475-7516/2020/06/001⟩
The precision of the cosmological data allows us to accurately approximate the predictions for cosmological observables by Taylor expanding up to a low order the dependence on the cosmological parameters around a reference cosmology. By applying this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21ad22baff71dea661da0b5c7bf47e07
http://arxiv.org/abs/1909.07951
http://arxiv.org/abs/1909.07951