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The covariant formulation of f(T) gravity
(Iop Publishing Ltd, 2016-06-09)
We show that the well-known problem of frame dependence and violation of local Lorentz invariance in the usual formulation of f(T) gravity is a consequence of neglecting the role of spin connection. We re-formulate f(T) ...
Logarithmic AdS waves and Zwei-Dreibein gravity
(Springer, 2014-04)
We show that the parameter space of Zwei-Dreibein Gravity (ZDG) in AdS 3 exhibits critical points, where massive graviton modes coincide with pure gauge modes and new 'logarithmic' modes appear, similar to what happens in ...
Loop quantization of a model for D = 1 + 2 (anti)de sitter gravity coupled to topological matter
(Classical and Quantum Gravity, 2019)
Vacua of exotic massive 3D gravity
(Springer, 2018-08)
We consider the recently proposed exotic 3D massive gravity. We show that this theory has a rich space of vacua, including asymptotically Anti de-Sitter (AdS) geometries obeying either the standard Brown-Henneaux boundary ...
Teleparallel theories of gravity: illuminating a fully invariant approach
(Iop Publishing Ltd, 2019-09-19)
Teleparallel gravity and its popular generalization f(T) gravity can be formulated as fully invariant (under both coordinate transformations and local Lorentz transformations) theories of gravity. Several misconceptions ...
Renormalized AdS gravity and holographic entanglement entropy of even-dimensional CFTs
(Springer Verlag, 2019-10)
We derive a general formula for renormalized entanglement entropy in even- dimensional CFTs holographically dual to Einstein gravity in one dimension higher. In order to renormalize, we adapt the Kounterterm method to ...