70 citations · 267 across the 24 of their papers we have counts for
25 papers
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…
Quantum vortex driven Kelvin wave in the thermal background of superfluid helium
Simone Scollo, Luca Galantucci, Giorgio Krstulovic
We present numerical evidence that Kelvin waves (KWs) on quantized vortices in superfluid helium can be directly observed in the normal fluid component at finite temperatures. Usin…
Inverse energy transfer in three-dimensional quantum vortex flows
Piotr Z. Stasiak, Andrew Baggaley, Carlo. F. Barenghi +2
Vortex reconnections play a fundamental role in fluids.They increase the complexity of flow and develop small-scale motions.In this work, we report that in superfluids, they can al…
Quantum vortices leave a macroscopic signature in the normal fluid
Luca Galantucci, Giorgio Krstulovic, Carlo F Barenghi
Recent work has highlighted the remarkable properties of quantum turbulence in superfluid helium II, consisting of a disordered tangle of quantised vortex lines which interact with…
Experimental and theoretical evidence of universality in superfluid vortex reconnections
Piotr Z. Stasiak, Yiming Xing, Yousef Alihosseini +5
The minimum separation between reconnecting vortices in fluids and superfluids obeys a universal scaling law with respect to time. The pre-reconnection and the post-reconnection pr…
Cross-Component Energy Transfer in Superfluid Helium-4
Piotr Z. Stasiak, Andrew W. Baggaley, Giorgio Krstulovic +2
The reciprocal energy and enstrophy transfers between normal fluid and superfluid components dictate the overall dynamics of superfluid He including the generation, evolution a…
Types of quantum turbulence
C. F. Barenghi, H. A. J. Middleton-Spencer, L. Galantucci +1
We collect and describe the observed geometrical and dynamical properties of turbulence in quantum fluids, particularly superfluid helium and atomic condensates for which more info…
Superfluid drain vortex
Wandrille Ruffenach, Luca Galantucci, Carlo F. Barenghi
Drain vortices are among the most common vortices observed in everyday life, yet their physics is complex due to the competition of vorticity's transport and diffusion, and the pre…
Dissipation anomaly in a turbulent quantum fluid
Luca Galantucci, Em Rickinson, Andrew W. Baggaley +2
When the intensity of turbulence is increased (by increasing the Reynolds number, e.g. by reducing the viscosity of the fluid), the rate of the dissipation of kinetic energy decrea…
Strong Quantum Turbulence in Bose Einstein Condensates
H. A. J. Middleton-Spencer, A. D. G. Orozco, L. Galantucci +5
By combining experiments and numerical simulations which model the dynamics of shaken atomic Bose-Einstein condensates, we reveal the surprising nature of quantum turbulence in the…
Friction-enhanced lifetime of bundled quantum vortices
Luca Galantucci, Giorgio Krstulovic, Carlo F. Barenghi
Experiments in the early 1980s have shown that a compact bundle of quantum vortex rings in superfluid helium remains coherent and travels a significant distance compared to its siz…
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…
Characterising arbitrary dark solitons in trapped one-dimensional Bose-Einstein condensates
H. A. J. Middleton-Spencer, N. G. Parker, L. Galantucci +1
We present a method to detect the presence and depth of dark solitons within repulsive one-dimensional harmonically trapped Bose-Einstein condensates. For a system with one soliton…
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…
Classical and quantum vortex leapfrogging in two-dimensional channels
Luca Galantucci, Michele Sciacca, Nick G Parker +2
The leapfrogging of coaxial vortex rings is a famous effect which has been noticed since the times of Helmholtz. Recent advances in ultra-cold atomic gases show that the effect can…
Intra-scales energy transfer during the evolution of turbulence in a trapped Bose-Einstein condensate
Arnol Daniel García-Orozco, Lucas Madeira, Luca Galantucci +2
In turbulence phenomena, including the quantum turbulence in superfluids, an energy flux flows from large to small length scales, composing a cascade of energy. A universal charact…
A new self-consistent approach of quantum turbulence in superfluid helium
Luca Galantucci, Andrew W. Baggaley, Carlo F. Barenghi +1
We present the Fully cOUpled loCAl model of sUperfLuid Turbulence (FOUCAULT) that describes the dynamics of finite temperature superfluids. The superfluid component is described by…
Crossover from interaction to driven regimes in quantum vortex reconnections
Luca Galantucci, Andrew W. Baggaley, Nick G. Parker +1
Reconnections of coherent filamentary structures play a key role in the dynamics of fluids, redistributing energy and helicity among the length scales, triggering dissipative effec…
Mesoscale helicity distinguishes Vinen from Kolmogorov turbulence in helium II
L. Galantucci, C. F. Barenghi, N. G. Parker +1
Experiments and numerical simulations show that quantum turbulence exists in two distinct limiting regimes: Kolmogorov turbulence (which shares with classical turbulence the import…
Quantum ferrofluid turbulence
T. Bland, G. W. Stagg, L. Galantucci +2
We study the elementary characteristics of turbulence in a quantum ferrofluid through the context of a dipolar Bose gas condensing from a highly non-equilibrium thermal state. Our…
Vortex reconnections and rebounds in trapped atomic Bose--Einstein condensates
Simone Serafini, Luca Galantucci, Elena Iseni +6
Reconnections and interactions of filamentary coherent structures play a fundamental role in the dynamics of fluids, plasmas and nematic liquid crystals. In fluids, vortex reconnec…
Large-scale normal fluid circulation in helium superflows
Luca Galantucci, Michele Sciacca, Carlo F. Barenghi
We perform fully-coupled numerical simulations of helium II pure superflows in a channel, with vortex- line density typical of experiments. Peculiar to our model is the computation…
Coupled normal fluid and superfluid profiles of turbulent helium II in channels
Luca Galantucci, Michele Sciacca, Carlo F. Barenghi
We perform fully coupled two--dimensional numerical simulations of plane channel helium II counterflows with vortex--line density typical of experiments. The main features of our a…
Turbulent superfluid profiles in a counterflow channel
L. Galantucci, C. F. Barenghi, M. Sciacca +2
We have developed a two-dimensional model of quantised vortices in helium II moving under the influence of applied normal fluid and superfluid in a counterflow channel. We predict…