Collisional dynamics of two-dimensional vortex quantum droplets

A quantum droplet is a self-bound state balanced by the mean-field interaction and Lee–Huang–Yang correction in Bose–Bose mixture. In this paper, we study collisional dynamics of two-dimensional droplets with vortex. By adjusting initial momentum, phase difference, topological charge droplets, total number particles, identify three dynamic mechanisms collisions, namely, splitting, no-splitting, their crossover according to states after collision, which are significantly different from merging, separation, evaporation vortex-free droplets. The difference two changes interference fringes manner splitting We also show that three-body loss atoms does not affect result.