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arXiv · 1012.5690

Einstein-Cartan gravity with scalar-fermion interactions

Olga Razina·Yerlan Myrzakulov·Nurzhan Serikbayev·Gulgasyl Nugmanova·Ratbay Myrzakulov
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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 $\Lambda$CDM model.

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Olga Razina, Yerlan Myrzakulov, Nurzhan Serikbayev, Gulgasyl Nugmanova, Ratbay Myrzakulov. 2010-12-28. Einstein-Cartan gravity with scalar-fermion interactions. https://doi.org/10.2478/s11534-011-0102-8

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