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Information × Registration Number 0220U100607, 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., Registration Date 22-01-2020 Organization Taras Shevchenko National University of Kyiv popup.description2  Object of study: large-scale magnetic fields in the Universe, primary plasma in the early Universe, Weyl half-metals. Purpose: To obtain a self-consistent system of equations for electromagnetic fields and primary plasma and find its solutions; estimate the magnitude of the generated magnetic fields; determine the conductivity of the plasma with scalar charge carriers; investigate interstitial superconductivity and apply a hydrodynamic approach to the description of the topological states of Weyl semimetals. Research Methods: Quantum Field Theory Methods, Control Kinetic Theory, Hydrodynamic Approach, Numerical Methods The influence of the dynamics of charged particles generated by the Schwinger effect on the evolution of the electric field during inflation is investigated. It is established that the Schwinger current is non-Markovian and cannot be described by Ohm's law. Magnetogenesis during pseudoscalar inflation with axial coupling of the electromagnetic field with the inflaton is considered. It is shown that in such a model it is possible to generate helical magnetic fields with a maximum induction up to 10-15 Gs and with a correlation length of the order of 1 pc. The conductivity of hot plasma with scalar charge carriers in the leading order in the interaction constant is calculated. The influence of deformation pseudomagnetic field on interstitial spin-triplet superconducting states in Weyl semimetals was studied using Eulenberger quasiclassical formalism. The critical value of the field separating the normal and superconducting phases was evaluated. A hydrodynamic description of Fermi arches - surface states of Weyl semimetals is proposed. It is shown that there is an additional gapless branch in the spectrum of surface states, and that the plasmon dispersion ratios are anisotropic in the momentum space. Product Description popup.authors Vilchinskii Stanislav Yo. Gorbar Eduard V. Gorkavenko Tetiana V. Momot Andrii I. Rakov Mykhailo V. Sobol Oleksandr O. Yakymenko Oleksandr I. popup.nrat_date 2020-04-02 Close