Stolyarov V.; Cren T.; Brun C.; Golovchanskiy I.; Skryabina O.; Kasatonov D.; Khapaev M.; Kupriyanov M.; Golubov A.; Roditchev D.
(2018)
© 2018 The Author(s). Vortices in quantum condensates exist owing to a macroscopic phase coherence. Here we show, both experimentally and theoretically, that a quantum vortex with a well-defined core can exist in a rather ...