Spatiotemporal vortex rings in atomic Bose-Einstein condensates

Autor:	Chelpanova, O. G., Kuriatnikov, Y. I., Vilchinskii, S., Yakimenko, A. I.
Rok vydání:	2019
Předmět:	Condensed Matter - Quantum Gases
Druh dokumentu:	Working Paper
Popis:	We investigate spatiotemporal vortex rings with phase dislocation both in space and time. It is demonstrated that these structures naturally appear as a periodical in time edge phase dislocation at the low-density region of a perturbed atomic Bose-Einstein condensate. The condition of formation, dynamics and stability of the spatiotemporal vortex rings are investigated for repulsive and attractive interatomic interactions. These theoretical findings open up a perspective for experimental observation of novel type of topological coherent structures in ultracold gases. Comment: 7 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1903.01849 Zobrazit plný text záznamu View this record from Arxiv