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Quantum instability for charged scalar particles on charged Nariai and ultracold black hole manifolds
F. Belgiorno, S. L. Cacciatori, F. Dalla Piazza
We analyze in detail the quantum instability which characterizes charged scalar field on three special de Sitter charged black hole backgrounds. In particular, we compute exactly t…
Conserved quantities for the Sitter particles
Sergio L. Cacciatori
Recent observations of the luminosity-red shift relation of distant type Ia supernovae established the fact that the expansion of the universe is accelerated. This is interpreted b…
Pair-production of charged Dirac particles on charged Nariai and ultracold black hole manifolds
F. Belgiorno, S. L. Cacciatori, F. Dalla Piazza
Spontaneous loss of charge by charged black holes by means of pair-creation of charged Dirac particles is considered. We provide three examples of exact calculations for the sponta…
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…