Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sánchez, Juan C. Bueno"'
Autor:
Sánchez, Juan C. Bueno
In this talk we elaborate on a mechanism to generate local contributions to the curvature perturbation in isolated patches of the Cosmic Microwave Background (CMB). The mechanism, based on the generation of an out-of-equilibrium configuration in fluc
Externí odkaz:
http://arxiv.org/abs/1603.01603
Autor:
Sanchez, Juan C. Bueno
Publikováno v:
JCAP09(2016)040
We investigate a framework aiming to provide a common origin for the large-angle anomalies detected in the Cosmic Microwave Background (CMB), which are hypothesized as the result of the statistical inhomogeneity developed by different isocurvature fi
Externí odkaz:
http://arxiv.org/abs/1602.06809
Autor:
Kumar, K. Sravan, Sanchez, Juan C. Bueno, Escamilla-Rivera, Celia, Marto, Joao, Moniz, Paulo Vargas
Publikováno v:
JCAP02(2016)063
In this work we consider a DBI Galileon (DBIG) inflationary model and constrain its parameter space with the Planck 2015 and BICEP2/Keck array and Planck (BKP) joint analysis data by means of a potential independent analysis. We focus our attention o
Externí odkaz:
http://arxiv.org/abs/1504.01348
Autor:
Sanchez, Juan C. Bueno
Single-field inflation, arguably the simplest and most compelling paradigm for the origin of our Universe, is strongly supported by the recent results of the Planck satellite and the BICEP2 experiment. The results from Planck, however, also confirm t
Externí odkaz:
http://arxiv.org/abs/1405.4913
Light vector fields during inflation obtain a superhorizon perturbation spectrum when their conformal invariance is appropriately broken. Such perturbations, by means of some suitable mechanism (e.g. the vector curvaton mechanism), can contribute to
Externí odkaz:
http://arxiv.org/abs/1308.3739
Autor:
Sánchez, Juan C. Bueno, Enqvist, Kari
We investigate the stochastic dynamics of the long wavelength modes of a generic light scalar field that during inflation is coupled to another scalar field. The coupling plays an important role for the fluctuation of the field amplitude and may bloc
Externí odkaz:
http://arxiv.org/abs/1210.7007
A global monopole (or other topological defect) formed during a recent phase transition with core size comparable to the present Hubble scale, could induce the observed accelerating expansion of the universe. In such a model, topological consideratio
Externí odkaz:
http://arxiv.org/abs/1110.2587
Autor:
Sanchez, Juan C. Bueno, Bastero-Gil, Mar, Berera, Arjun, Dimopoulos, Konstantinos, Kohri, Kazunori
Publikováno v:
JCAP 1103:020,2011
The warm inflation paradigm considers the continuous production of radiation during inflation due to dissipative effects. In its strong dissipation limit, warm inflation gives way to a radiation dominated Universe. High scale inflation then yields a
Externí odkaz:
http://arxiv.org/abs/1011.2398
Publikováno v:
JCAP 1009:021,2010
We propose a scale dependent analytic approximation to the exact linear growth of density perturbations in Scalar-Tensor (ST) cosmologies. In particular, we show that on large subhorizon scales, in the Newtonian gauge, the usual scale independent sub
Externí odkaz:
http://arxiv.org/abs/1004.4905
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.