General Relativity and Quantum Cosmology
[Submitted on 31 Dec 2015 (v1), last revised 25 Jan 2021 (this version, v2)]
Title:Phantom dark energy from scalar$-$torsion coupling
View PDFAbstract: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.
Submission history
From: Nikodem Poplawski [view email][v1] Thu, 31 Dec 2015 20:52:17 UTC (3 KB)
[v2] Mon, 25 Jan 2021 18:52:54 UTC (4 KB)
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