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João G. Rosa

Researcher at University of Coimbra

Publications -  93
Citations -  3862

João G. Rosa is an academic researcher from University of Coimbra. The author has contributed to research in topics: Inflation (cosmology) & Inflaton. The author has an hindex of 26, co-authored 86 publications receiving 3176 citations. Previous affiliations of João G. Rosa include Instituto Politécnico Nacional & University of Aveiro.

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Testing general relativity with present and future astrophysical observations

Emanuele Berti, +64 more
TL;DR: In this article, a catalog of modified theories of gravity for which strong-field predictions have been computed and contrasted to Einstein's theory is presented, and the current understanding of the structure and dynamics of compact objects in these theories is summarized.
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Noncommutative gravitational quantum well

TL;DR: In this article, a model where non-commutativity of both configuration and momentum spaces is considered is proposed and the problem of the two-dimensional gravitational quantum well is analyzed.
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The importance of being warm (during inflation)

TL;DR: In this article, the amplitude of primordial curvature perturbations is enhanced when a radiation bath at a temperature T > H is sustained during inflation by dissipative particle production, which is particularly significant when a non-trivial statistical ensemble of inflaton fluctuations is also maintained.
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Warm Little Inflaton

TL;DR: It is shown that inflation can naturally occur at a finite temperature T>H that is sustained by dissipative effects, when the inflaton field corresponds to a pseudo Nambu-Goldstone boson of a broken gauge symmetry.
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General dissipation coefficient in low-temperature warm inflation

TL;DR: In this article, the dissipation coefficient of on-shell and off-shell degrees of freedom in supersymmetric models is derived for the regime where the radiation temperature is below the heavy mass threshold.