Nonminimally coupled gravitational and electromagnetic fields: pp-wave solutions


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Dereli T., Sert O.

PHYSICAL REVIEW D, cilt.83, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

We give the Lagrangian formulation of a generic nonminimally extended Einstein-Maxwell theory with an action that is linear in the curvature and quadratic in the electromagnetic field. We derive the coupled field equations by a first-order variational principle using the method of Lagrange multipliers. We look for solutions describing plane-fronted Einstein-Maxwell waves with parallel rays. We give a family of exact pp-wave solutions associated with a partially massless spin-2 photon and a partially massive spin-2 graviton.