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Information × Registration Number 0222U003432, 0119U100335 , R & D reports Title Topological properties of chiral matter and Bose-Ainstein's condensates in a magnetic field. popup.stage_title Head Gorbar Eduard V., Доктор фізико-математичних наук Registration Date 22-03-2022 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research: Dirac and Weyl semimetals, Bose-Einstein condensates of ultracold atoms, primary plasma in the early universe. Purpose: to investigate electronic, transport and superconducting properties of Dirac and Weyl semimetals; to study the nonlinear dynamics of quantum vortices in Bose-Einstein condensates of ultracold gases; to study the generation and evolution of magnetic fields in primary plasma with chiral asymmetry in the early universe. Research methods: formalism of Green's quantum field functions, quantum kinetic approach, numerical methods. Results and their novelty: A system of quantum kinetic equations describing the Swinger birth of charged particles has been used to study inflationary magnetogenesis. It is established that the Schwinger current has a non-Markov current nature and cannot be described by Ohm's law. Impact studied of the deformation pseudomagnetic field into internodal spin-triplet superconducting states in Weyl semimetals and the critical value of the field separating the normal and superconducting phases is determined. A hydrodynamic description of Fermi arches - surface states of topologically protected states of Weyl semimetals is proposed. It is shown that there is an additional gapless branch in the spectrum of surface states, and it was also found that the dispersion ratios of plasmon are anisotropic in the momentum space. The fusion of two parallel toroidal atomic Bose-Einstein condensates with different vortices in three-dimensional traps. The final state of the condensate crucially depends on the initial imbalance of the populations in the rings, as well as on the shape of the three-dimensional potential of the trap.  Product Description popup.authors Atamas Nataliya О. Bardic Vitaly Yu. Vizniuk Oleksandr V. Vilchinskii Stanislav Yo. Gorkavenko Volodymyr M. Gorkavenko Tetiana V. Matzui Lyudmila Yu. Momot Andrii І. Prykhodko Olena O. Rakov Mykhailo V. Sobol Oleksandr O. Chumachenko Artem V. Yakymenko Oleksandr I. popup.nrat_date 2022-03-22 Close