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Einstein-Cartan gravity with scalar-fermion interactions

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Razina O., Myrzakulov Y., Serikbayev N., Nugmanova G., Myrzakulov R.
Open Physics
|
2012
|
vol. 10
|
issue 1
47-50
EN
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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