This review paper presents an overview of the theoretical and experimental progress on the
study of matter-wave dark solitons in atomic Bose–Einstein condensates. Upon introducing …

The phenomenon of Bose–Einstein condensation is a phase transition originally predicted
by Bose and Einstein in 1924. In particular, it was shown that below a critical temperature T …

The Josephson effect is a macroscopic quantum phenomenon that reveals the broken
symmetry associated with any superfluid state. Here we report on the observation of the …

We observe solitonic vortices in an atomic Bose-Einstein condensate (BEC) after free
expansion. Clear signatures of the nature of such defects are the twisted planar density …

We investigate the dynamics of two miscible superfluids experiencing fast counterflow in a
narrow channel. The superfluids are formed by two distinguishable components of a trapped …

We observe a long-lived solitary wave in a superfluid Fermi gas of Li 6 atoms after phase
imprinting. Tomographic imaging reveals the excitation to be a solitonic vortex, oriented …

Reconnections and interactions of filamentary coherent structures play a fundamental role in
the dynamics of fluids, redistributing energy and helicity among the length scales and …

We experimentally investigate the dynamics of spin solitary waves (magnetic solitons) in a
harmonically trapped, binary superfluid mixture. We measure the in situ density of each …

Different types of gravitational wave (GW) detectors are considered. It is noted that
interferometric techniques offer the greatest prospects for GW registration due to their high …

We follow the time evolution of a superfluid Fermi gas of resonantly interacting Li 6 atoms
after a phase imprint. Via tomographic imaging, we observe the formation of a planar dark …