L
Luis P. Chimento
Researcher at Facultad de Ciencias Exactas y Naturales
Publications - 179
Citations - 5578
Luis P. Chimento is an academic researcher from Facultad de Ciencias Exactas y Naturales. The author has contributed to research in topics: Dark energy & Cosmological constant. The author has an hindex of 34, co-authored 179 publications receiving 5333 citations. Previous affiliations of Luis P. Chimento include University of Buenos Aires & Ikerbasque.
Papers
More filters
Journal ArticleDOI
Interacting Quintessence
TL;DR: In this article, a suitable coupling between a quintessence scalar field and a pressureless cold dark matter (CDM) fluid leads to a constant ratio of the energy densities of both components which is compatible with an accelerated expansion of the universe.
Journal ArticleDOI
Interacting quintessence solution to the coincidence problem
TL;DR: In this paper, the authors show that a suitable interaction between a scalar field and a matter fluid in a spatially homogeneous and isotropic spacetime can drive the transition from a matter dominated era to an accelerated expansion phase and simultaneously solve the coincidence problem of our present Universe.
Journal ArticleDOI
Extended tachyon field, Chaplygin gas and solvable k-essence cosmologies
TL;DR: In this article, the Friedmann-Robertson-Walker spacetime was investigated and the set of functions F that generate three different families of extended tachyon fields and Chaplygin gases was found.
Journal ArticleDOI
Constructing phantom cosmologies from standard scalar field universes.
Luis P. Chimento,Ruth Lazkoz +1 more
TL;DR: It is illustrated how form-invariance transformations can be used for constructing phantom cosmologies from standard scalar field universes and it is shown that the corresponding transformation provides the link between a standard and a phantom cosmology.
Journal ArticleDOI
Linear and nonlinear interactions in the dark sector
TL;DR: In this article, the authors investigate models of interacting dark matter and dark energy for the universe in a spatially flat Friedmann-Robertson-Walker space-time, and find the ''source equation'' for the total energy density and determine the energy density of each dark component.