Cosmology from Newton–Chern–Simons gravity

S. Lepe (Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Valparaíso, Chile) ; G. Rubio (Departamento of Física, Universidad de Concepción, Casilla 160-C, Concepción, Chile) ; P. Salgado (Facultad de Ciencias, Universidad Arturo Prat de Iquique, Av. Arturo Prat Chacón 2120, Iquique, Chile; Departamento of Física, Universidad de Concepción, Casilla 160-C, Concepción, Chile)

We study a five-dimensional non-relativistic gravity theory whose action is composed of a gravitational sector and a sector of matter where the gravitational sector is given by the so called Newton–Chern–Simons gravity and where the matter sector is described by a perfect fluid. At time to do cosmology, the obtained field equations shows a close analogy with the projectable version of the Hořava–Lifshitz theory in (3+1)-dimensions. Solutions and their asymptotic limits are found. In particular a phantom solution with a future singularity reminiscent of a Litlle Big Rip future singularity is obtained.

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      "value": "We study a five-dimensional non-relativistic gravity theory whose action is composed of a gravitational sector and a sector of matter where the gravitational sector is given by the so called Newton\u2013Chern\u2013Simons gravity and where the matter sector is described by a perfect fluid. At time to do cosmology, the obtained field equations shows a close analogy with the projectable version of the Ho\u0159ava\u2013Lifshitz theory in <math><mo>(</mo><mn>3</mn><mo>+</mo><mn>1</mn><mo>)</mo></math>-dimensions. Solutions and their asymptotic limits are found. In particular a phantom solution with a future singularity reminiscent of a Litlle Big Rip future singularity is obtained."
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Published on:
12 November 2019
Publisher:
Elsevier
Published in:
Nuclear Physics B , Volume 950 C (2019)

Article ID: 114838
DOI:
https://doi.org/10.1016/j.nuclphysb.2019.114838
Copyrights:
The Authors
Licence:
CC-BY-3.0

Fulltext files: