Bounce Universe and Black Holes from Critical Einsteinian Cubic Gravity

Abstract

We show that there exists a critical point for the coupling constants in Einsteinian cubic gravity where the linearized equations on the maximally-symmetric vacuum vanish identically. We construct an exact isotropic bounce universe in the critical theory in four dimensions. The comoving time runs from minus infinity to plus infinity, yielding a smooth universe bouncing between two de Sitter vacua. In five dimensions we adopt numerical approach to construct a bounce solution, where a singularity occurred before the bounce takes place. We then construct exact anisotropic bounces that connect two isotropic de Sitter spacetimes with flat spatial sections. We further construct exact AdS black holes in the critical theory in four and five dimensions and obtain an exact AdS wormbrane in four dimensions.

Latex, 20 pages, 8 figures

References in corpus (7)

• Black Holes in Higher-Derivative Gravity
• Critical Gravity in Four Dimensions
• Einsteinian cubic gravity
• AdS and Lifshitz Black Holes in Conformal and Einstein-Weyl Gravities
• Four-dimensional black holes in Einsteinian cubic gravity
• Aspects of general higher-order gravities
• Thermodynamical First Laws of Black Holes in Quadratically-Extended Gravities

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• Holographic Studies of The Generic Massless Cubic Gravities
• Analytically Approximation Solution to Einstein-Cubic Gravity
• Dynamical aspects for scalar fields coupled to cubic contractions of the Riemann tensor
• The extremal Kerr entropy in higher-derivative gravities
• Higher-Curvature Gravity, Black Holes and Holography