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Information × Registration Number 0220U101266, 0117U004859 , R & D reports Title Quantum theory of systems of interacting fermions and bosons. popup.stage_title Head Berezhnoy Yuriy A., Доктор фізико-математичних наук Registration Date 07-02-2020 Organization V.N. Karazin Kharkiv National University popup.description2  Objects of research are the structure of light nuclei, the mechanism of interaction of alpha particles with nuclei of carbon and magnesium, a model of strong absorption with antisymmetrized S-matrix. An properties of fermi- and bose quasiparticles and their interaction in superfluid helium and crystalline lattice, the oscillation of metal magnetization. Subject of study - the effects of nuclear rainbow scattering in the model of strong absorption with antisymmetrized S-matrix, the parameters of S-matrix on the basis of compatible calculations and analysis of differential cross sections of elastic and inelastic scattering of alpha particles on carbon and magnesium nuclei; the oscillatory nature of the magnetization of metals in an external magnetic field at low temperatures, revealing the relation of these oscillations to quantum diffraction; interaction of quasiparticles in crystals; excitation features of electromagnetic waves in superfluid He at frequencies that coincide with the energy of the gap in the rotons spectrum. The purpose of the work is to modify the new original parameterization of the scattering matrix and to determine the structural nuclear parameters by fitting the experimental data. The aim is also to study the vibrations effects in metals at external fields, to calculate the correction to the Lifshitz-Kosevich model, to obtain thermodynamic values of crystals in comparison with those calculated in the Debye model. Product Description popup.authors Berezhnoi Yurii A. Gakh Andrii H. Molev Oleksandr S. Nurmagambetov Oleksii Yu. Onyshchenko Hennadii M. Khodusov Valerii D. popup.nrat_date 2020-04-02 Close