10 citations · 16 across the 6 of their papers we have counts for
4 papers · 1 filter
Magnetic levitation in the field of a rotating dipole
Grégoire Le Lay, Sarah Layani, Adrian Daerr +5
It is well known that two permanent magnets of fixed orientation will either always repel or attract one another regardless of the distance between them. However, if one magnet is…
Quadratic perturbations of the Schwarzschild black hole: The algebraically special sector
Jibril Ben Achour, Hugo Roussille
We investigate quadratic algebraically special perturbations (ASPs) of the Schwarzschild black hole. Their dynamics are derived from the expansion up to second order in perturbatio…
Nonlinear gravitational waves in Horndeski gravity: Scalar pulse and memories
Jibril Ben Achour, Mohammad Ali Gorji, Hugo Roussille
We present and analyze a new non-perturbative radiative solution of Horndeski gravity. This exact solution is constructed by a disformal mapping of a seed solution of the shift-sym…
Disformal gravitational waves
Jibril Ben Achour, Mohammad Ali Gorji, Hugo Roussille
Contrary to conformal transformations, disformal transformations can change the principal null directions of a spacetime geometry. Thus, depending on the frame a gravitational wave…