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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
General analytic solutions of scalar field cosmology with arbitrary potential
Physical Review D, Volume 93, No. 12, Article 123518, Year 2016
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Description
We present the solution space for the case of a minimally coupled scalar field with arbitrary potential in a Friedmann-Lemaître-Robertson-Walker metric. This is made possible due to the existence of a nonlocal integral of motion corresponding to the conformal Killing field of the two-dimensional minisuperspace metric. Both the spatially flat and nonflat cases are studied first in the presence of only the scalar field and subsequently with the addition of noninteracting perfect fluids. It is verified that this addition does not change the general form of the solution, but only the particular expressions of the scalar field and the potential. The results are applied in the case of parametric dark energy models where we derive the scalar field equivalence solution for some proposed models in the literature. © 2016 American Physical Society.
Authors & Co-Authors
Dimakis, Nikolaos
Chile, Valdivia
Universidad Austral de Chile
Zampeli, Adamantia
Greece, Athens
National and Kapodistrian University of Athens
Paliathanasis, Andronikos
Chile, Valdivia
Universidad Austral de Chile
Christodoulakis, Τheodosios Ε.
Greece, Athens
National and Kapodistrian University of Athens
Terzis, Petros A.
Greece, Athens
National and Kapodistrian University of Athens
Statistics
Citations: 35
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1103/PhysRevD.93.123518
ISSN:
24700010