Einstein-Cartan gravity with scalar-fermion interactions
Cosmology and Nongalactic Astrophysics
2011-12-13 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
In this paper, we have considered the g-essence and its particular cases, k-essence and f-essence, within the framework of the Einstein-Cartan theory. We have shown that a single fermionic field can give rise to the accelerated expansion within the Einstein-Cartan theory. The exact analytical solution of the Einstein-Cartan-Dirac equations is found. This solution describes the accelerated expansion of the Universe with the equation of state parameter as in the case of CDM model.
Cite
@article{arxiv.1012.5690,
title = {Einstein-Cartan gravity with scalar-fermion interactions},
author = {Olga Razina and Yerlan Myrzakulov and Nurzhan Serikbayev and Gulgasyl Nugmanova and Ratbay Myrzakulov},
journal= {arXiv preprint arXiv:1012.5690},
year = {2011}
}
Comments
6 pages, title is changed