68 citations · 422 across the 14 of their papers we have counts for
4 papers · 1 filter
Counter-flow instability of a quantum mixture of two superfluids
M. Abad, A. Recati, S. Stringari +1
We study the instability of a mixture of two interacting counter-flowing superfluids. For a homogeneous system, we show that superfluid hydrodynamics leads to the existence of a dy…
Instability of the superfluid flow as black-hole lasing effect
S. Finazzi, F. Piazza, M. Abad +2
We show that the instability leading to the decay of the one-dimensional superfluid flow through a penetrable barrier are due to the black-hole lasing effect. This dynamical instab…
Phase-slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
Marta Abad, Muntsa Guilleumas, Ricardo Mayol +3
We study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips respo…
Magnetic phase transition in coherently coupled Bose gases in optical lattices
L. Barbiero, M. Abad, A. Recati
We describe the ground state of a gas of bosonic atoms with two coherently coupled internal levels in a deep optical lattice in a one dimensional geometry. In the single-band appro…