Gravitational wave solutions of quadratic curvature gravity using a null coframe formulation

preprint2014arXivOpen access

Abstract

Quadratic curvature gravity equations are projected to a complex null coframe by using the algebra of exterior forms and expressed in terms of the spinor quantities defined originally by Newman and Penrose. As an application, a new family of impulsive gravitational wave solutions propagating in various type D backgrounds is introduced.

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