43 citations · 46 across the 2 of their papers we have counts for
5 papers · 1 filter
Dark matter and nonlocality of spacetime
Mehdi Saravani
In this letter, we review a candidate for dark matter, known as ODM, and explain how it relates to spacetime nonlocality. This connection provides a physical interpretation for…
Classification of shift-symmetric Horndeski theories and hairy black holes
Mehdi Saravani, Thomas P. Sotiriou
No-hair theorems for scalar-tensor theories imply that the trivial scalar field configuration is the unique configuration around stationary black hole spacetimes. The most basic as…
Causal structure of black holes in shift-symmetric Horndeski theories
Robert Benkel, Nicola Franchini, Mehdi Saravani +1
In theories with derivative (self-)interactions, the propagation of perturbations on nontrivial field configurations is determined by effective metrics. Generalized scalar-tensor t…
Hořava Gravity after GW170817
A. Emir Gumrukcuoglu, Mehdi Saravani, Thomas P. Sotiriou
The recent detection of gravitational wave GW170817 has placed a severe bound on the deviation of the speed of gravitational waves from the speed of light. We explore the consequen…
Black hole horizons at the extremal limit in Lorentz-violating gravity
Nicola Franchini, Mehdi Saravani, Thomas P. Sotiriou
Lorentz-violating gravity theories with a preferred foliation can have instantaneous propagation. Nonetheless, it has been shown that black holes can still exist in such theories a…