Adapted from Ref. 
Skyrmion vortex textures of the orbital anisotropy vector in rotating bulk superfluid -. The unit vector points in the direction of the orbital angular momentum of the Cooper pair. The spatial distribution of its orientations is called the texture of the orbital part of the superfluid order parameter, which generates the superfluid vorticity. Here the orientations are shown in the transverse plane. In the perpendicular direction, parallel to the angular velocity of rotation , the textures are translationally invariant. (Left) Unit cell of the zero-magnetic field skyrmion lattice consisting of four objects called merons, two of which are circular and two are hyperbolic. Each meron represents a vortex with a single quantum of circulation and thus the unit cell carries four quanta of circulation. In the circular vortex-meron in the center, while in the hyperbolic vortex-meron in the center. (Right) Unit cell of the vortex sheet with a linear chain of alternating circular and hyperbolic merons confined within a domain-wall-like structure, shown in its equilibrium configuration in a rotating container at bottom right.