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Information × Registration Number 0215U004574, 0111U009545 , R & D reports Title Phase transformations, transfer phenomena and electromagnetic processes in heterogeneous condensed media with a complex structure popup.stage_title Head Poluektov Yuri, Доктор фізико-математичних наук Registration Date 16-06-2015 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 On the basis of the modified Gross-Pitaevskii equation, that takes into account both relaxation and interaction with the electromagnetic field, propagation of electromagnetic waves in Bose-Einstein condensate of atoms is studied. The condensate of atoms is suggested to have both the own dipole moment and the dipole moment arising due to polarization under the action of the field. The cases are considered, when the dispersion curves of electromagnetic wave and excitations do not cross, and also when the condensate has excitations with an energy gap so that its dispersion curve and the dispersion curve of electromagnetic waves cross. It is shown that propagation of sound waves in mediums with spontaneous polarization is accompanied by oscillations of the electric field. Influence of the dipole-dipole interaction on the character of propagation of the electromagnetic wave and sound in Bose-Einstein condensate is studied. Within the framework of phenomenological approach, hydrodynamics equations for the normal and superfluid liquids with spontaneous electric polarization are obtained. Product Description popup.authors Абизов Олександр Сергійович Білозоров Дмитро Павлович Безуглий Олексій Іванович Давидов Леонід Миколайович Копійченко Денис Юрійович Мчедлов-Петросян Петро Отарович Осмаєв Олег Аданійович Полуектов Юрій Матвійович Сльозов Віталій Валентинович Сорока Олексій Олександрович Танатаров Ігор Володимирович Шаповалов Роман Володимирович Шкловський Валерій Олександрович popup.nrat_date 2020-04-02 Close