81 citations · 280 across the 10 of their papers we have counts for
10 papers
Turbulent relaxation to equilibrium in a two-dimensional quantum vortex gas
Matthew T. Reeves, Kwan Goddard-Lee, Guillaume Gauthier +9
We experimentally study emergence of microcanonical equilibrium states in the turbulent relaxation dynamics of a two-dimensional chiral vortex gas. Same-sign vortices are injected…
Vortex Nucleation Limited Mobility of Free Electron Bubbles in the Gross-Pitaevskii Model of a Superfluid
Alberto Villois, Hayder Salman
We study the motion of an electron bubble in the zero temperature limit where neither phonons nor rotons provide a significant contribution to the drag exerted on an ion moving wit…
Wind generated rogue waves in an annular wave flume
A. Toffoli, D. Proment, H. Salman +7
We investigate experimentally the statistical properties of a wind-generated wave field and the spontaneous formation of rogue waves in an annular flume. Unlike many experiments on…
Long-range Ordering of Topological Excitations in a Two-Dimensional Superfluid Far From Equilibrium
Hayder Salman, Davide Maestrini
We study the relaxation of a 2D ultracold Bose-gas from a nonequilibrium initial state containing vortex excitations in experimentally realizable square and rectangular traps. We s…
A Vortex Filament Tracking Method for the Gross-Pitaevskii Model of a Superfluid
Alberto Villois, Giorgio Krstulovic, Davide Proment +1
We present an accurate and robust numerical method to track quantized vortex lines in a superfluid described by the Gross-Pitaevskii equation. By utilizing the pseudo-vorticity fie…
Leapfrogging Kelvin waves
N. Hietala, R. Hänninen, H. Salman +1
Two vortex rings can form a localized configuration whereby they continually pass through one another in an alternating fashion. This phenomenon is called leapfrogging. Using param…
Scattering of Line-Ring Vortices in a Superfluid
Alberto Villois, Hayder Salman, Davide Proment
We study the scattering of vortex rings by a superfluid line vortex using the Gross-Pitaevskii equation in a parameter regime where a hydrodynamic description based on a vortex fil…
Breathers on Quantized Superfluid Vortices
Hayder Salman
We consider the propagation of breathers along a quantised superfluid vortex. Using the correspondence between the local induction approximation (LIA) and the nonlinear Schrödinger…
Approximating Steady States in Equilibrium and Nonequilibrium Condensates
Hayder Salman
We obtain approximations for the time-independent Gross-Pitaevskii (GP) and complex GP equation in two and three spatial dimensions by generalizing the divergence-free WKB method.…
Condensation of Classical Nonlinear Waves in a Two-Component System
Hayder Salman, Natalia G. Berloff
We study the formation of large-scale coherent structures (a condensate) for a system of two weakly interacting classical waves. Using the coupled defocusing nonlinear Schrödinger…