Einstein-Cartan gravity with scalar-fermion interactions |
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| Authors: | Olga Razina Yerlan Myrzakulov Nurzhan Serikbayev Gulgasyl Nugmanova Ratbay Myrzakulov |
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| Institution: | 1.Eurasian International Center for Theoretical Physics,Eurasian National University,Astana,Kazakhstan;2.Department of Physics,CSU Fresno,Fresno,USA |
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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 ΛCDM model. |
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