Nonminimal couplings, gravitational waves, and torsion in Horndeski’s theory
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DOI: 10.1103/physrevd.96.084023
Abstract: The Horndeski Lagrangian brings together all possible interactions between gravity and a scalar field that yield second-order field equations in four-dimensional spacetime. As originally proposed, it only addresses phenomenology without torsion, which is a non-Riemannian… read more here.
Keywords: nonminimal couplings; couplings gravitational; gravitational waves; torsion ... See more keywords