Einstein-Cartan gravity with scalar-fermion interactions

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.

6 pages, title is changed

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Cited by in corpus (9)

• FRW Cosmology in F(R,T) gravity
• Modified Chaplygin Gas and Solvable F-essence Cosmologies
• G-essence cosmologies with scalar-fermion interactions
• Cosmological evolution of equation of state for dark energy in G-essence models
• Cosmological Einstein-Maxwell model with $g$-essence
• The cosmological principle in theories with torsion: The case of Einstein-Cartan-Dirac-Maxwell gravity
• Cosmological bounces, cyclic universes, and effective cosmological constant in Einstein-Cartan-Dirac-Maxwell theory
• Some Models of Cyclic and Knot Universes
• Starobinsky model with f-essence