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Information × Registration Number 0223U001224, 0122U200154 , R & D reports Title Bose-Einstein condensate as a candidate for dark matter. popup.stage_title Head Horbar Eduard V., Доктор фізико-математичних наук Registration Date 26-01-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 Research object: quantum vortices, Bose-Einstein condensate, dark matter. Purpose of the work: To study of superfluid self-gravitating Bose-Einstein condensate with non-zero angular momentum as the main physical component of cold dark matter. Research methods: mean field model, Gross-Pitaevskii-Poisson equation, numerical methods. Results and novelty: The stability of the vortex structures of self-gravitating Bose-Einstein condensates is theoretically investigated. It is demonstrated for the first time that vortex solitons with a single topological charge remain stable after a collision. Stable dark matter vortex structures can influence baryonic matter in galaxies, including its density distribution and rotation curves. It is shown that the quantum nature of self-gravitating Bose-Einstein condensates leads to the formation of topological excitations in the form of vortex rings and Josephson vortices during the collision of soliton structures. The radiation of gravitational waves during the collision was studied and the effect of the phenomenon of quantum interference on the radiation intensity was demonstrated.  Product Description popup.authors Wilczynski Stanislav Yо. Yakymenko Oleksandr I. popup.nrat_date 2023-01-26 Close