  Recent experimental advancements enabled the creation of various systems
exhibiting superfluid behavior, with one notable achievement being the
development of Dipolar Bose-Einstein condensates (dBECs) characterized by
long-range dipole-dipole interactions. When confined along one or more spatial
dimensions, these condensates exhibit a low-dimensional dispersion relation
reminiscent of superfluid liquid helium, featuring a roton minimum. This study
investigates the existence of two-dimensional solitary waves characterized by
topological defects (quantized vorticity) and their transition to vortex-free
Jones-Roberts solitons. The explicit connection between solitary waves and
roton excitations is demonstrated for the first time, providing support for
Feynman's hypothesis regarding the nature of rotons as fading vortex
excitations.
