48 citations · 151 across the 9 of their papers we have counts for
9 papers
Boson-fermion stars: exploring different configurations
Alfredo B. Henriques, Luis E. Mendes
We use the flexibility of the concept of a fermion-boson star to explore different configurations, ranging from objects of atomic size and masses of the order g, up to ob…
Brans-Dicke brane cosmology
Luis E. Mendes, Anupam Mazumdar
A five dimensional brane cosmology with non-minimally coupled scalar field to gravity has been considered in a Jordan-Brans-Dicke frame. We derive an effective four dimensional fie…
Initial conditions for hybrid inflation
Luis E Mendes, Andrew R Liddle
In hybrid inflation models, typically only a tiny fraction of possible initial conditions give rise to successful inflation, even if one assumes spatial homogeneity. We analyze som…
Preheating in Generalized Einstein Theories
Anupam Mazumdar, Luis E. Mendes
We study the preheating scenario in Generalized Einstein Theories, considering a class of such theories which are conformally equivalent to those of an extra field with a modified…
Early cosmology and the stochastic gravitational wave background
Luis E Mendes, Andrew R Liddle
The epoch when the Universe had a temperature higher than a GeV is long before any time at which we have reliable observations constraining the cosmological evolution. For example,…
Post-inflationary reheating and perturbations of the cosmic microwave background
R. G. Moorhouse, A. B. Henriques, L. E. Mendes
We formulate a gradual dynamical transition from a power-law inflation era with a scalar field to a radiation era with no scalar field including inhomogeneous perturbations to the…
Density and Graviton Perturbations in the Cosmic Microwave Background
A. B. Henriques, L. E. Mendes, R. G. Moorhouse
This paper evaluates and compares the gravitational wave and density perturbation contributions to the cosmic microwave background radiation, on the basis of the same power law inf…
Inflating Defects
Patricio S. Letelier, Luis E. Mendes
A Kantowski-Sachs cosmological model with an O(3) global defect as a source is studied in the context of the topological inflation scenario.
An Exact Calculation of the Energy Density of Cosmological Gravitational Waves
L. E. Mendes, A. B. Henriques, R. G. Moorhouse
In this paper we calculate the Bogoliubov coefficients and the energy density of the stochastic gravitational wave background for a universe that undergoes inflation followed by ra…