Steam condensers Bose-Einstein condensates 20 Statistical mechanics 16 Bose-Einstein condensation 12 Vortex flow 10 Casimir-Polder interaction 6 Gross-Pitaevskii equation 6 Toroidal trap 6 Analytical expressions 4 Angular momentum 4 Atomic spectroscopy 4 Bragg cells 4 Bragg spectroscopy 4 Contact interaction 4 Corrugated surfaces 4 Crystal lattices 4 Dipolar interaction 4 Dynamic structure factors 4 Einstein condensates 4 Gaussians 4 Lattice sites 4 Optical materials 4 Single vortices 4 Spatial Fourier components 4 Surface interactions 4 Two photon 4 Velocity field 4 Velocity fields 4 Vortex dynamics 4 Vortex state 4