185 citations · 1.6k across the 44 of their papers we have counts for
7 papers · 1 filter
Bright solitary matter waves: formation, stability and interactions
T. P. Billam, A. L. Marchant, S. L. Cornish +2
In recent years, bright soliton-like structures composed of gaseous Bose-Einstein condensates have been generated at ultracold temperature. The experimental capacity to precisely e…
Scattering bright solitons: quantum versus mean-field behavior
Bettina Gertjerenken, Thomas P. Billam, Lev Khaykovich +1
We investigate scattering bright solitons off a potential using both analytical and numerical methods. Our paper focuses on low kinetic energies for which differences between the m…
Inverse Energy Cascade in Forced 2D Quantum Turbulence
Matthew T. Reeves, Thomas P. Billam, Brian P. Anderson +1
We demonstrate an inverse energy cascade in a minimal model of forced 2D quantum vortex turbulence. We simulate the Gross-Pitaevskii equation for a moving superfluid subject to for…
Equilibrium solutions of immiscible two-species Bose-Einstein condensates in perturbed harmonic traps
R. W. Pattinson, T. P. Billam, S. A. Gardiner +5
We investigate the mean--field equilibrium solutions for a two--species immiscible Bose--Einstein condensate confined by a harmonic confinement with additional linear perturbations…
Second-order, number-conserving description of non-equilibrium dynamics in finite-temperature Bose-Einstein condensates
T. P. Billam, P. Mason, S. A. Gardiner
While the Gross--Pitaevskii equation is well-established as the canonical dynamical description of atomic Bose-Einstein condensates (BECs) at zero-temperature, describing the dynam…
3D quaternionic condensations, Hopf invariants, and skyrmion lattices with synthetic spin-orbit coupling
Yi Li, Xiangfa Zhou, Congjun Wu
We study the topological configurations of the two-component condensates of bosons with the D Weyl-type spin-orbit coupling subject to a harmonic trapping p…