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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access December 3, 2011

Einstein-Cartan gravity with scalar-fermion interactions

Olga Razina, Yerlan Myrzakulov, Nurzhan Serikbayev, Gulgasyl Nugmanova and Ratbay Myrzakulov
From the journal Open Physics

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 w = −1 as in the case of ΛCDM model.

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Published Online: 2011-12-3
Published in Print: 2012-2-1

© 2011 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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