Niemchenko Y. Processes of heat transfer and electrical activity in the models of interacting quasiparticles in superfluid helium

The thesis is devoted to the theoretical research of the properties of quasiparticles systems in superfluid helium, which determine the processes of energy transfer at the interface of superfluid helium – solid and the emergence of electrical induction in superfluid helium. The probabilities of both elastic and all possible inelastic processes of destruction and creation of superfluid helium and solids phonons at the interface are calculated. The contributions of all processes to the heat flux and the difference in heat fluxes between superconducting helium and solids are determined. In the thesis, it is shown that during the movement of the superfluid component, an electric field arises from the quantum vortices of superconducting helium due to the electrical properties of quantum vortex rings, and due to anisotropy of the energy-momentum dependence of quasiparticles. The polarization vector due to the dipole moments of the quantum vortex rings in the field of the van der Waals force and in waves of first and second sound is calculated.