Pastukhov V. Properties of many-boson systems with different kinds of inter-particle interactions for temperatures above the critical point.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U004661

Thesis Registration Form

0413U004661.pdf

Applicant for

Specialization

  • 01.04.02 - Теоретична фізика

19-06-2013

Specialized Academic Board

Д 35.051.09

Ivan Franko National University of Lviv

Essay

The thesis is devoted to the description of two-component Bose liquids in wide temperature range and to the field-theoretic study of one-component Bose systems in normal phase. The Bose condensation phenomena were studied numerically for 4He-6He mixture at different concentrations and temperatures. The structure of the one-particle spectrum and the spectrum of collective excitation of wide class of interacting Bose systems in normal phase were analyzed. The calculation of the heat capacity of liquid 4He is carried out numerically taking into account temperature dependence of effective mass of particles.

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