Phantom dark energy from scalar$-$torsion coupling

Abstract

We show that a scalar field without a kinetic term in the Lagrangian density, coupled to the covariant divergence of the torsion vector in the Einstein$-$Cartan theory of gravity, becomes kinetic in its general-relativistic equivalent formulation. The resulting kinetic term is negative: such a scalar field could be a source of phantom dark energy.

3 pages; published version

References in corpus (2)

• Matter-antimatter asymmetry and dark matter from torsion
• Primordial fluctuations of scale factor in closed Universe in Einstein$-$Cartan gravity

Cited by in corpus (1)

• Multiscalar-torsion Cosmology: Exact and Analytic Solutions from Noether Symmetries