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Understanding superradiant phenomena with synthetic vector potentials in atomic Bose-Einstein condensates
Luca Giacomelli, Iacopo Carusotto
We theoretically investigate superradiance effects in quantum field theories in curved space-times by proposing an analogue model based on Bose--Einstein condensates subject to a s…
On the role of interactions in trans-sonically flowing atomic condensates
Manuele Tettamanti, Iacopo Carusotto, Alberto Parola
We provide a joint numerical-analytical study of the physics of a flowing atomic Bose-Einstein condensate in the combined presence of an external trap and a step potential which ac…
Position- and momentum-space two-body correlations in a weakly interacting trapped condensate
Salvatore Butera, David Clément, Iacopo Carusotto
We investigate the position- and momentum-space two--body correlations in a weakly interacting, harmonically trapped atomic Bose-Einstein condensed gas at low temperatures. The two…
Non-linear edge dynamics of an Integer Quantum Hall fluid
Alberto Nardin, Iacopo Carusotto
We report a theoretical study of the linear and nonlinear dynamics of edge excitations of an integer quantum Hall state of non-interacting fermions. New features beyond the chiral…
Ergoregion instabilities in rotating two-dimensional Bose--Einstein condensates: new perspectives on the stability of quantized vortices
Luca Giacomelli, Iacopo Carusotto
We investigate the stability of vortices in two-dimensional Bose--Einstein condensates. In analogy with rotating spacetimes and with a careful account of boundary conditions, we sh…
Hanbury-Brown and Twiss bunching of phonons and of the quantum depletion in a strongly-interacting Bose gas
Hugo Cayla, Salvatore Butera, Cécile Carcy +6
We report the realisation of a Hanbury-Brown and Twiss (HBT)-like experiment with a gas of strongly interacting bosons at low temperatures. The regime of large interactions and low…