Figure 6
From: Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps

Typical vortex structures of a two-component dipolar BEC.
The aspect ratio of the potential λ = 100 and the contact interactions are fixed as g = 100, g12 = 150. The rotational frequencies and dipolar interactions are set as (a) Ω = 0.54, εdd = 1.2, (b) Ω = 0.66, εdd = 0.9, (c) Ω = 0.7, εdd = 0.3 and (d) Ω = 0.7, εdd = 0.8, respectively. In the density distribution, the marked dots and circles denote the locations of the vortices for dipolar and nondipolar components, respectively. Note that the fourth and fifth columns are the phases of dipolar and nondipolar condensates, respectively and the sixth one is the density difference of such two condensates. The field of view is 6.4 × 6.4 in units of a0.