Hryhorchak O. The microscopic theory of Bose-liquid with direct three- and four-particle correlations taken into account

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0416U005156

Thesis Registration Form

0416U005156.pdf

Applicant for

Specialization

  • 01.04.02 - Теоретична фізика

01-07-2016

Specialized Academic Board

Д 35.051.09

Ivan Franko National University of Lviv

Essay

The work is devoted to the construction of microscopic theory of Bose-liquid, in particular Helium-4 liquid, taking into account three- and four-particle direct correlations in the wide temperature region. The density matrix of interacting Bose-particles for a wide temperature domain in the post-RPA approximation from the first principles was found. On its basis such thermodynamic and structure functions of Bose-liquid as partition function, two-, three- and four-particle structure factors, first sound velocity, average values for the kinetic, potential and full internal energy were calculated.

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