Noncommutative cosmological models induced by a symplectic formalism coupled to phantom fluids

In the present letter, we consider homogeneous and isotropic noncommutative cosmological models induced by a symplectic formalism coupled to phantom perfect fluids and a cosmological constant. After computing the field equations, we solve them to find the scalar factor dynamics. We restrict our atte...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Oliveira-Neto, G, Rezende Rodrigues, L G
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 01.10.2019
Subjects
Astronomical models
Computational fluid dynamics
Cosmological constant
Cosmology
Formalism
Parameter modification
Physics - General Relativity and Quantum Cosmology
Singularities
Universe
Online AccessGet full text

Cover

More Information
Summary:In the present letter, we consider homogeneous and isotropic noncommutative cosmological models induced by a symplectic formalism coupled to phantom perfect fluids and a cosmological constant. After computing the field equations, we solve them to find the scalar factor dynamics. We restrict our attention to expansive solutions, that may represent the present expansion of our Universe. Those solutions generate {\it big rip} singularities. We study how the parameters, of those models, modify the time it takes to the scalar factor expands from zero till infinity, at the {\it big rip}.
ISSN:2331-8422
DOI:10.48550/arxiv.1907.09619