García-Bellido

Publications11
h-index10
Citations1,024
Highly Influential Citations32
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Density perturbations and black hole formation in hybrid inflation.
TLDR
It is shown that density perturbations in hybrid inflation models of the new type can be very large on the scale corresponding to the phase transition, which could lead to a copious production of black holes in these models.
Metric perturbations in two-field inflation.
TLDR
It is shown that the usual method of solving the linearized perturbation equations is equivalent to the recently proposed analysis of Sasaki and Stewart in terms of the perturbed expansion along neighboring trajectories in field-space.
Stationary solutions in Brans-Dicke stochastic inflationary cosmology.
TLDR
It is shown here that a nonminimal conformal coupling of the inflaton to the curvature scalar, as well as radiative corrections to the effective potential, may provide a dynamical cutoff and generate stationary solutions for chaotic inflation potentials.
Study of CP-violating charge asymmetries of single muons and like-sign dimuons in pp̄ collisions
TLDR
The winners and runners-up in the 2016-17 season will be announced at a special ceremony at London's O2 Arena later this month.
Stationarity of inflation and predictions of quantum cosmology.
TLDR
A new mechanism is proposed which may help solve the cosmological constant problem and is given examples of models where each of these possibilities can be realized, and some implications for quantum cosmology are discussed.
Fluctuations of the gravitational constant in the inflationary Brans-Dicke cosmology.
TLDR
It is found that in some inflationary models the probability distribution P_p rapidly approaches a stationary regime, and the shape of the distribution depends, however, on the choice of the time parametrization.
Constraints from inflation on scalar-tensor gravity theories.
We show how observations of the perturbation spectra produced during inflation may be used to constrain the parameters of general scalar-tensor theories of gravity, which include both an inflaton and…
Metric perturbations from quantum tunneling in open inflation.
  • García-Bellido
  • Physics
    Physical review. D, Particles and fields
  • 5 October 1995
TLDR
The parameters of the models of open inflation are constrain so that these modes do not distort the observed temperature anisotropy of the microwave background.
General relativity as an attractor in scalar-tensor stochastic inflation.
TLDR
It is concluded that general relativity is an attractor during the quantum diffusion of the fields, which leads to runaway solutions with infinitely large values of the Planck mass after inflation.
Spectrum of curvature perturbations from hybrid inflation.
TLDR
An exact expression for the amplitude of quantum fluctuations on all scales in the limit where the backreaction on the metric is neglected is given, a very good approximation for values of the inflaton field well below the Planck scale.
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