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Information × Registration Number 0225U005067, (0121U108722) , R & D reports Title Development of the methods of statistical physics and quantum field theory for study of the problems of multiparticle quantum systems and induced gravitation and gauge fields in the theory of (super)strings and branes popup.stage_title Дослідження особливостей термодинаміки і фазових діаграм для надплинних фаз фермі- рідин (зокрема, нейтронної матерії) з анізотропним триплетним спарюванням у сильних магнітних полях. Твісторний підхід до опису моделей струн та р-бран у просторах сталої кривизни. Head Sliusarenko Yurii V., д.ф.-м.н. Registration Date 24-12-2025 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 Research is aimed at developing methods of statistical physics to describe states of multiparticle quantum systems with broken symmetries. Methods of quantum field theory will be used to study conformally invariant models of tensor fields in curved spaces and spontaneous generation of gravity. popup.description2 In the framework of non-relativistic quantum Fermi-liquid theory there were obtained refined analytic expressions for temperatures of the phase transitions of space-homogeneous neutron matter of supranuclear densities from normal to superfluid states with anisotropic spin-triplet p-wave pairing in the stationary and homogeneous extremely strong magnetic field observed in the liquid outer core of magnetars (strongly magnetized neutron stars). Study of neutron stars, in which hadronic matter is under extreme conditions unreachable in a laboratory, is of considerable interest due to the possibility to test predictions of the Standard model and to seek for the signals of new physics. There was found the Lax representation for dynamical equations of the relativistic null-string in the space-times of constant-curvature. There was proposed novel twistor formulation of (null-)strings in the anti-de Sitter space-time. Obtained results and their generalizations can be applied to elaboration of quantum gravity based on the string theory with the use holographic principle. Product Description popup.authors Alexander Tarasov Михайло Ю. Ковалевський Andrii G. Sotnikov Dmytro V. Uvarov Oleksandr O. Zheltukhin Mykyta S. Bulakhov Vladyslav I. Unukovych Oleksander S. Peletminskii Sergiy M. Shulga Olena D. Marinenko Illia V. Lukin popup.nrat_date 2025-12-24 Close