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Information × Registration Number 0220U104711, 0120U104956 , R & D reports Title Controlled transport of topological excitations in atomic circuits for quantum sensors and quantum information processing systems. popup.stage_title Head Yakymenko Oleksandr I., Доктор фізико-математичних наук Registration Date 23-12-2020 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research: quantum vortices in Bose condensate of atomic ultracold gases. Purpose: to develop experimentally available methods of forming quantum states with different topological charges in the system of coaxial rings, to investigate possible scenarios of controlled vortex transport between connected superfluid rings and to theoretically analyze transitions between states with different angular moments associated with vortex transport. by the action of acoustic perturbations. Research methods: numerical modeling in combination with variational, asymptotic and other approximate analytical methods. The dynamics of vortices in the system of interacting toroidal atomic Bose condensates has been studied with the help of numerical and analytical methods. The possibility of generating stable superfluid flows by mixing with a laser beam in a system of vertically connected toroidal condensates with different numbers of atoms is demonstrated. The energy of the vortex superfluid flow for different positions of quantum vortices in the system of connected coplanar superfluid rings is carried out and the influence of dissipative effects on the transport of quantum vortices between the rings is investigated. The transitions between states with different angular moments in annular condensates accompanied by controlled transport of quantum vortices under the influence of acoustic perturbations are investigated.  Product Description popup.authors Bazhan Natalia V. Nikolayeva Yelyzaveta О. Oliynyk Artem О. Svetlichnyy Anton О. popup.nrat_date 2020-12-26 Close