Ramp-up of Hawking Radiation in Bose-Einstein-Condensate Analog Black Holes
Alessandro Fabbri, Roberto Balbinot
Abstract
Inspired by a recent experiment by Steinhauer and co-workers, we present a simple model which describes the formation of an acoustic black hole in a Bose-Einstein condensate, allowing an analytical computation of the evolution in time of the corresponding density-density correlator. We show the emergence of analog Hawking radiation out of a "quantum atmosphere" region significantly displaced from the horizon. This is quantitatively studied both at T=0 and even in the presence of an initial temperature T, as is always the case experimentally.
Topics & Concepts
Hawking radiationBose–Einstein condensatePhysicsHawkingSonic black holeHorizonBlack hole (networking)Micro black holeRadiationSimple (philosophy)EinsteinQuantumQuantum mechanicsQuantum electrodynamicsAstronomyRouting (electronic design automation)EpistemologyComputer networkPhilosophyComputer scienceLink-state routing protocolRouting protocolQuantum Electrodynamics and Casimir EffectCosmology and Gravitation TheoriesBlack Holes and Theoretical Physics