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Title: Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory

Abstract

In this paper, we analyze the cosmological models in Einstein-Aether gravity, which is a modified theory of gravity in which a time-like vector field breaks the Lorentz symmetry. We use this formalism to analyse different cosmological models with different behavior of the scale factor. In this analysis, we use a certain functional dependence of the Dark Energy (DE) on the Hubble parameter H . It will be demonstrated that the Aether vector field has a non-trivial effect on these cosmological models. We also perform the Om diagnostic in Einstein-Aether gravity and we fit the parameters of the cosmological models using recent observational data.

Authors:
 [1];  [2]; ;  [3];  [4];  [5]
  1. Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste (Italy)
  2. Pailan College of Management and Technology, Bengal Pailan Park, Kolkata-700 104 (India)
  3. Eurasian International Center for Theoretical Physics and Department of General and Theoretical Physics, Eurasian National University, Astana 010008 (Kazakhstan)
  4. Department of Mathematics, COMSATS Institute of Information Technology, Sahiwal 57000 (Pakistan)
  5. Irving K. Barber School of Arts and Sciences, University of British Columbia‚ÄĒOkanagan, Kelowna, British Columbia V1V 1V7 (Canada)
Publication Date:
OSTI Identifier:
22679925
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 04; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMOLOGICAL MODELS; GENERAL RELATIVITY THEORY; GRAVITATION; NONLUMINOUS MATTER; SYMMETRY; VECTOR FIELDS

Citation Formats

Pasqua, Antonio, Chattopadhyay, Surajit, Momeni, Davood, Myrzakulov, Ratbay, Raza, Muhammad, and Faizal, Mir, E-mail: toto.pasqua@gmail.com, E-mail: surajcha@iucaa.ernet.in, E-mail: d.momeni@yahoo.com, E-mail: mraza@zju.edu.cn, E-mail: rmyrzakulov@gmail.com, E-mail: mirfaizalmir@gmail.com. Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/04/015.
Pasqua, Antonio, Chattopadhyay, Surajit, Momeni, Davood, Myrzakulov, Ratbay, Raza, Muhammad, & Faizal, Mir, E-mail: toto.pasqua@gmail.com, E-mail: surajcha@iucaa.ernet.in, E-mail: d.momeni@yahoo.com, E-mail: mraza@zju.edu.cn, E-mail: rmyrzakulov@gmail.com, E-mail: mirfaizalmir@gmail.com. Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory. United States. doi:10.1088/1475-7516/2017/04/015.
Pasqua, Antonio, Chattopadhyay, Surajit, Momeni, Davood, Myrzakulov, Ratbay, Raza, Muhammad, and Faizal, Mir, E-mail: toto.pasqua@gmail.com, E-mail: surajcha@iucaa.ernet.in, E-mail: d.momeni@yahoo.com, E-mail: mraza@zju.edu.cn, E-mail: rmyrzakulov@gmail.com, E-mail: mirfaizalmir@gmail.com. Sat . "Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory". United States. doi:10.1088/1475-7516/2017/04/015.
@article{osti_22679925,
title = {Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory},
author = {Pasqua, Antonio and Chattopadhyay, Surajit and Momeni, Davood and Myrzakulov, Ratbay and Raza, Muhammad and Faizal, Mir, E-mail: toto.pasqua@gmail.com, E-mail: surajcha@iucaa.ernet.in, E-mail: d.momeni@yahoo.com, E-mail: mraza@zju.edu.cn, E-mail: rmyrzakulov@gmail.com, E-mail: mirfaizalmir@gmail.com},
abstractNote = {In this paper, we analyze the cosmological models in Einstein-Aether gravity, which is a modified theory of gravity in which a time-like vector field breaks the Lorentz symmetry. We use this formalism to analyse different cosmological models with different behavior of the scale factor. In this analysis, we use a certain functional dependence of the Dark Energy (DE) on the Hubble parameter H . It will be demonstrated that the Aether vector field has a non-trivial effect on these cosmological models. We also perform the Om diagnostic in Einstein-Aether gravity and we fit the parameters of the cosmological models using recent observational data.},
doi = {10.1088/1475-7516/2017/04/015},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 04,
volume = 2017,
place = {United States},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}