192 citations · 4k across the 104 of their papers we have counts for
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Thermodynamical aspects of running vacuum models
J. A. S. Lima, Spyros Basilakos, Joan Solà
The thermal history of a large class of running vacuum models in which the effective cosmological term is described by a truncated power series of the Hubble rate, whose dominant t…
Is CDM an effective CCDM cosmology?
J. A. S. Lima, R. C. Santos, J. V. Cunha
We show that a cosmology driven by gravitationally induced particle production of all non-relativistic species existing in the present Universe mimics exactly the observed flat acc…
From de Sitter to de Sitter: decaying vacuum models as a possible solution to the main cosmological problems
G. J. M. Zilioti, R. C. Santos, J. A. S. Lima
Decaying vacuum cosmological models evolving smoothly between two extreme (very early and late time) de Sitter phases are capable to solve or at least to alleviate some cosmologica…
Gravitationally Induced Particle Production and its Impact on the WIMP Abundance
I. Baranov, J. A. S. Lima
A large set of independent astronomical observations have provided a strong evidence for nonbaryonic dark matter in the Universe. One of the most investigated candidates is an unkn…
Primordial Gravitational Waves in Running Vacuum Cosmologies
D. A. Tamayo, J. A. S. Lima, M. E. S. Alves +1
We investigate the cosmological production of gravitational waves in a nonsingular flat cosmology powered by a "running vacuum" energy density described by , a phe…
Production of primordial gravitational waves in a simple class of running vacuum cosmologies
D. A. Tamayo, J. A. S. Lima, D. F. A. Bessada
The problem of cosmological production of gravitational waves is discussed in the framework of an expanding, spatially homogeneous and isotropic FRW type Universe with time-evolvin…