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We demonstrate mini droplet, mega droplet and stripe formation in a dipolar164Dy condensate, using an improved mean-field model including aLee-Huang-Yang-type interaction, employing a quasi-two-dimensional (quasi-2D)trap in a way distinct from that in the pioneering experiment, M. A. Norcia et.al., Nature 596, 357 (2021), where the polarization z direction was taken to beperpendicular to the quasi-2D x-y plane. In the present study we take thepolarization z direction in the quasi-2D x-z plane. Employing the same trappingfrequencies as in the experiment, and interchanging the frequencies along the yand z directions, we find the formation of mini droplets for number of atoms Nas small as N = 1000. With the increase of number of atoms, aspatially-periodic supersolid-like one-dimensional array of mega dropletscontaining 50000 to 2 atoms are formed along the x direction in the x-yplane. These mega droplets are elongated along the polarization z direction,consequently, the spatially periodic arrangement of droplets appears as astripe pattern in the x-z plane. To establish the supersolidity of the dropletswe demonstrate continued dipole-mode and scissors-mode oscillations of thedroplet-lattice pattern. The main findings of the present study can be testedexperimentally with the present know-how.

Mini droplet, mega droplet and stripe formation in a dipolar condensate