89 citations · 210 across the 8 of their papers we have counts for
8 papers
The inflationary origin of the Cold Spot anomaly
Juan C. Bueno Sanchez
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 t…
Inflationary buildup of a vector field condensate and its cosmological consequences
Juan C. Bueno Sanchez, Konstantinos Dimopoulos
Light vector fields during inflation obtain a superhorizon perturbation spectrum when their conformal invariance is appropriately broken. Such perturbations, by means of some suita…
On the fate of coupled flat directions during inflation
Juan C. Bueno Sánchez, Kari Enqvist
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…
Topological Quintessence
Juan C. Bueno Sanchez, Leandros Perivolaropoulos
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 acceleratin…
Parametrization for the Scale Dependent Growth in Modified Gravity
Juan C. Bueno Sanchez, James B. Dent, Sourish Dutta +1
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 subh…
Evolution of Dark Energy Perturbations in Scalar-Tensor Cosmologies
J. C. Bueno Sanchez, L. Perivolaropoulos
We solve analytically and numerically the generalized Einstein equations in scalar-tensor cosmologies to obtain the evolution of dark energy and matter linear perturbations. We com…