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69 papers
Supersolid formation in a dipolar condensate by roton instability
Aitor Alaña, Iñigo L. Egusquiza, Michele Modugno
We characterize the role of the roton instability in the formation of a supersolid state of an elongated dipolar condensate, following a quench of the contact interactions across t…
Connecting shear-flow and vortex array instabilities in annular atomic superfluids
D. Hernandez-Rajkov, N. Grani, F. Scazza +8
At the interface between two fluid layers in relative motion, infinitesimal fluctuations can be exponentially amplified, inducing vorticity and the breakdown of the laminar flow. T…
Dipole modes of a trapped bosonic mixture: Fate of the sum-rule approach
Chiara Fort, Michele Modugno
We present a general discussion of the dipole modes of a heteronuclear bosonic mixture in a harmonic trap by comparing the prediction of the sum-rule approach with full Gross-Pitae…
Dipole dynamics of an interacting bosonic mixture
Luca Cavicchioli, Chiara Fort, Michele Modugno +2
We unravel the coupled dipole dynamics of a two-species Bose-Einstein condensate with tunable interspecies interaction. We produce a degenerate mixture of K-Rb in an…
Crossing the superfluid-supersolid transition of an elongated dipolar condensate
Aitor Alaña, Nicolò Antolini, Giulio Biagioni +2
We provide a theoretical characterization of the dynamical crossing of the superfluid-supersolid phase transition for a dipolar condensate confined in an elongated trap, as observe…
Spinor-Induced Instability of Kinks, Holes and Quantum Droplets
Yaroslav V. Kartashov, V. M. Lashkin, Michele Modugno +1
We address the existence and stability of one-dimensional (1D) holes and kinks and two-dimensional (2D) vortex-holes nested in extended binary Bose mixtures, which emerge in the pr…