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First observation of bright solitons in bulk superfluid He-4
Francesco Ancilotto, David Levy, Jessica Pimentel +1
The existence of bright solitons in bulk superfluid He-4 is demonstrated by time-resolved shadowgraph i maging experiments and density functional theory (DFT) calculations. The ini…
Spinning superfluid helium-4 nanodroplets
Francesco Ancilotto, Manuel Barranco, Marti Pi
We have studied spinning superfluid He nanodroplets at zero temperature using Density Functional theory. Due to the irrotational character of the superfluid flow, the shapes of…
Density Functional Theory of doped superfluid liquid helium and nanodroplets
Francesco Ancilotto, Manuel Barranco, Francois Coppens +5
During the last decade, density function theory (DFT) in its static and dynamic time dependent forms, has emerged as a powerful tool to describe the structure and dynamics of doped…
The onset of nanoscale dissipation in superfluid He-4 at zero temperature: the role of vortex shedding and cavitation
Francesco Ancilotto, Manuel Barranco, Marti Pi +1
Two-dimensional flow past an infinitely long cylinder of nanoscopic radius in superfluid He-4 at zero temperature is studied by time-dependent density functional theory. The calcul…