Vortex rings are critical for thrust production underwater. In the ocean, self-propelled mesozooplankton generate vortices while swimming within a weakly stratified fluid. While large-scale biogenic transport has been observed during vertical migration in wild and lab experiments, little focus given to evolution of induced vortex as function their propagation direction relative density gradient...

The reduced density matrix functional theory (RDMFT) is a remarkable tool for studying properties of ground states strongly interacting quantum many body systems. As it gives access to the one-particle state, provides perfectly tailored approach Bose–Einstein condensation (BEC) or systems correlated electrons. In particular, homogeneous BECs as well Bose–Hubbard dimer has been recently shown th...