208 citations · 610 across the 16 of their papers we have counts for
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Kelvin-Helmholtz instability in annular superfluids across the UFG-BCS crossover
Michał Śliwiński, Klejdja Xhani, Gabriel Wlazłowski
We investigate the Kelvin-Helmholtz instability of counter-rotating annular Fermi superfluids using time-dependent superfluid density functional theory. When the two initially sepa…
Reproducible nucleation and control of stable quantum vortex rings in Bose-Einstein condensates
Giorgia Iori, Klejdja Xhani, Woo Jin Kwon +2
We propose and numerically validate an experimentally feasible on-demand protocol for the nucleation and manipulation of stable quantum vortex rings in trapped Bose-Einstein conden…
Tuning the Critical Current in Toroidal Superfluids via Controllable Impurities
K. Xhani, G. Del Pace, N. Grani +4
We combine numerical and experimental approaches to study how impurities affect the maximum superflow in an annular Bose-Einstein condensate. By tuning the impurity density, we ach…
Impurity-controlled vortex mobility and pair-breaking in fermionic superfluid rings
Buğra Tüzemen, Andrea Barresi, Gabriel Wlazłowski +2
Using time-dependent density functional theory, we study how density and size of impurities govern dissipation of persistent currents of fermionic superfluid rings in the BCS regim…
Stability of persistent currents in superfluid fermionic rings
Klejdja Xhani, Andrea Barresi, Marek Tylutki +2
We investigate the stability of persistent currents in superfluid fermionic gases confined to a ring geometry. Our study, conducted at zero temperature using time-dependent density…
Stabilizing persistent currents in an atomtronic Josephson junction necklace
Luca Pezzè, Klejdja Xhani, Cyprien Daix +7
Arrays of Josephson junctions are at the forefront of research on quantum circuitry for quantum computing, simulation and metrology. They provide a testing bed for exploring a vari…
Decay of persistent currents in annular atomic superfluids
Klejdja Xhani, Giulia Del Pace, Francesco Scazza +1
We investigate the role of vortices in the decay of persistent current states of annular atomic superfluids by solving numerically the Gross-Pitaevskii equation, and we directly co…
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…
Dissipation Mechanisms in Fermionic Josephson Junction
Gabriel Wlazłowski, Klejdja Xhani, Marek Tylutki +2
We characterize numerically the dominant dynamical regimes in a superfluid ultracold fermionic Josephson junction. Beyond the coherent Josephson plasma regime, we discuss the onset…
Imprinting persistent currents in tunable fermionic rings
G. Del Pace, K. Xhani, A. Muzi Falconi +7
Persistent currents in annular geometries have played an important role in disclosing the quantum phase coherence of superconductors and mesoscopic electronic systems. Ultracold at…
Dissipation in a Finite Temperature Atomic Josephson Junction
Klejdja Xhani, Nikolaos P. Proukakis
We numerically demonstrate and characterize the emergence of distinct dynamical regimes of a finite temperature bosonic superfluid in an elongated Josephson junction generated by a…
Sound emission and annihilations in a programmable quantum vortex collider
W. J. Kwon, G. Del Pace, K. Xhani +5
In quantum fluids, the quantisation of circulation forbids the diffusion of a vortex swirling flow seen in classical viscous fluids. Yet, a quantum vortex accelerating in a superfl…
Roadmap on Atomtronics: State of the art and perspective
L. Amico, M. Boshier, G. Birkl +56
Atomtronics deals with matter-wave circuits of ultra-cold atoms manipulated through magnetic or laser-generated guides with different shapes and intensities. In this way, new types…
Dynamical Phase Diagram of Ultracold Josephson Junctions
K. Xhani, L. Galantucci, C. F. Barenghi +3
We provide a complete study of the phase diagram characterising the distinct dynamical regimes emerging in a three-dimensional Josephson junction in an ultracold quantum gas. Consi…
Critical transport and vortex dynamics in a thin atomic Josephson junction
K. Xhani, E. Neri, L. Galantucci +9
We study the onset of dissipation in an atomic Josephson junction between Fermi superfluids in the molecular Bose-Einstein condensation limit of strong attraction. Our simulations…
Josephson effect in fermionic superfluids across the BEC-BCS crossover
G. Valtolina, A. Burchianti, A. Amico +8
We report on the observation of the Josephson effect between two strongly interacting fermionic superfluids coupled through a thin tunneling barrier. We prove that the relative pop…