Search academic texts

Information × Registration Number 0213U004300, 0111U009549 , R & D reports Title The development of methods of statistical physics and quantum field theory for the study of problems of condensed and gaseous media and field dynamics and supersymmetric elongated objects popup.stage_title Head Slyusarenko Yuri Viktorovych, Доктор фізико-математичних наук Registration Date 10-10-2013 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 2.1 The system of self-consistent equations describing the equilibrium state of a Bose system with a single-particle and pair condensates is obtained. 2.2 It is shown that for the sparsed systems (alkali atoms), almost all the particles are in the single-particle condensate. 2.3 It is proved that for dense Bose systems such as superfluid 4He, the pair condensate fraction is dominant, and the single-particle condensate fraction is less than 10%. 2.4 The thermodynamic properties of Bose systems with single-particle and pair condensates, such as the ground-state energy, the pressure, the excitation spectrum are calculated. 2.5 The theory of equilibrium states of the same charge particles above the surface of the liquid dielectric film located on a solid substrate, in the presence of the attractive external constant electric field is built. 2.6 In terms of the variational principle we obtain the self-consistency equations for the parameters describing the system: the distribution function of charges above the liquid dielectric surface, electrostatic potential in all areas of the system and the surface profile of liquid dielectric. 2.7 We obtain the solutions of the self-consistent equations near the critical point in the assumption that the gas of charges above the liquid dielectric film surface is nondegenerate. The parameters of the phase transition of the system to an asymmetric phase - a state with a spatially periodic ordering are determined. 2.8 The period of the two-dimensional lattice as a function of the physical parameters of the problem - the temperature, the value of external pressing electric field, the number of electrons per unit of the flat liquid dielectric surface, the density of the dielectric, its surface tension and dielectric constant and dielectric constant of the solid substrate are obtained. Product Description popup.authors Іванченко Євген Олександрович Івашин Анатолій Петрович Водяницький Олександр Андрійович Гершун Віктор Дмитрович Желтухін Олександр Олександрович Ковалевський Михайло Юрійович Литвиненко Дмитро Михайлович Мариненко Олена Дмитрівна Мацкевич Валентина Тадеушівна Ніколаєнко Сергій Олександрович Пелетминский Олександр Сергійович Пелетминський Сергій Володимирович Слюсаренко Юрій Вікторович Сорока В'ячеслав Олександрович Сотніков Андрій Генадійович Тарасов Олександр Миколайович Уваров Дмитро В'ячеславович Шульга Сергій Миколайович popup.nrat_date 2020-04-02 Close