Generalized hybrid metric-Palatini gravity
Nicola TamaniniDepartment of Mathematics, University College London, Gower Street, London WC1E 6BT, United KingdomChristian G. BöhmerDepartment of Mathematics, University College London, Gower Street, London WC1E 6BT, United Kingdom
2013en
ABI
Abstract
We introduce a new approach to modified gravity which generalizes the recently proposed hybrid metric-Palatini gravity. The gravitational action is taken to depend on a general function of both the metric and Palatini curvature scalars. The dynamical equivalence with a nonminimally coupled biscalar field gravitational theory is proved. The evolution of cosmological solutions is studied using dynamical systems techniques.
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Cited by 20 references