Einstein-Cartan gravity with scalar-fermion interactions

Details Einstein-Cartan gravity with scalar-fermion interactions Einstein-Cartan gravity with scalar-fermion interactions

2010-12-28

arxiv.org/abs/1012.5690v2

Cent. Eur. J. Phys., vol. 10, N1, 47-50 (2012)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, title is changed

Scientific paper

10.2478/s11534-011-0102-8

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 $\Lambda$CDM model.

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