49 citations · 77 across the 12 of their papers we have counts for
12 papers
On the theory of ideal Bose-gas at a finite particle number
A. I. Bugrij, V. M. Loktev
The ideal Bose-gas with finite number of particles is investigated. The exact expressions for the partition functions and occupation numbers in the grand canonical, canonical a…
On the theory of inhomogeneous Bose-Einstein condensation of magnons in yttrium garnet
A. I. Bugrij, V. M. Loktev
The Bose-Einstein condensation (BEC) of magnons created by a strong pumping in ferromagnetic thin films of yttrium iron garnet used as systems of finite size is considered analytic…
On the theory of Bose-condensate fluctuations in finite size systems
A. I. Bugrij, V. M. Loktev
An asymptotic expansions for the grand partition function of ideal Bose gas in the canonical ensemble with arbitrary number of particles is obtained. It is shown that the expressio…
The peculiarities of Bose-condensation of quasiparticles
A. I. Bugrij, V. M. Loktev
An attempt is made to consider the difference between the proccesses of the Bose-Einstein condensation of particles and quasiparticles. An equation for particle number of the Bose-…
Spin matrix elements in 2D Ising model on the finite lattice
A. I. Bugrij, O. Lisovyy
We present explicit formulas for all spin matrix elements in the 2D Ising model with the nearest neighbor interaction on the finite periodic square lattice. These expressions gener…
On the theory of Bose-Einstein condensation of quasiparticles: on the possibility of condensation of magnons at high temperatures
A. I. Bugrij, V. M. Loktev
Bose condensation of quasiparticles in physical systems of finite size iz considered for the case of ferromagnetic thin films. It is shown that in accordance with present-day exper…