Vortex motion in a dipolar supersolid

Supersolidity combines the rigidity of crystalline order with the fluidity of superfluids. In a dipolar Bose gas, the short-range contact interaction and long-range anisotropic dipole-dipole interaction are responsible for the supersolid phase. While a vortex freely moves in the background superfluid, the crystalline structure restricts and affects the motion. We consider Bose-Einstein condensate of ¹⁶⁴Dy atoms in a supersolid phase where the vortex is injected with a Laguerre-Gaussian light beam. With numerical simulation, we study the footprints of the vortex during its time dynamics for different supersolid configurations. We show in an experimentally feasible way how these footprints can reveal the internal structure of a supersolid.