64 citations · 174 across the 6 of their papers we have counts for
6 papers
Monge-Ampere Geometry and the Eady Problem
Roberto D'Onofrio, Giovanni Ortenzi, Ian Roulstone
Chynoweth and Sewell proposed a mathematical model for an atmospheric front based on the singularities of the Legendre transformation between different pairs of dual variables. Dra…
Spacetime geometries and light trapping in travelling refractive index perturbations
F. Belgiorno, S. L. Cacciatori, V. Gorini +4
In the framework of transformation optics, we show that the propagation of a locally superluminal refractive index perturbation (RIP) in a Kerr medium can be described, in the eiko…
Dielectric black holes induced by a refractive index perturbation and the Hawking effect
F. Belgiorno, S. L. Cacciatori, G. Ortenzi +3
We consider a 4D model for photon production induced by a %superluminal refractive index perturbation in a dielectric medium. We show that, in this model, we can infer the presence…
Analogue Gravity and ultrashort laser pulse filamentation
D. Faccio, S. Cacciatori, V. Gorini +5
Ultrashort laser pulse filaments in dispersive nonlinear Kerr media induce a moving refractive index perturbation which modifies the space-time geometry as seen by co-propagating l…
Patch coalescence as a mechanism for eukaryotic directional sensing
A. Gamba, I. Kolokolov, V. Lebedev +1
Eukaryotic cells possess a sensible chemical compass allowing them to orient toward sources of soluble chemicals. The extracellular chemical signal triggers separation of the cell…
Plane waves from double extended spacetimes
S. L. Cacciatori, G. Ortenzi, S. Penati
We study exact string backgrounds (WZW models) generated by nonsemisimple algebras which are obtained as double extensions of generic D--dimensional semisimple algebras. We prove t…