3 papers
cond-mat.other2004
Study of the temperature dependence of single-particle and pair coherent condensate densities for a Bose liquid with a "depleted" single-particle Bose-Einstein condensate (BEC) at
E. Pashitskii, S. Vilchynskyy
We study the temperature dependence of single-particle and pair coherent condensate densities for a Bose liquid with a "depleted" single-particle Bose-Einstein condensate (BEC) at…
cond-mat.soft2002
The Superfluid State of a Bose Liquid as a Superposition of a Suppressed Bose-Eistein Condensate and an Intensive Pair Coherent Condensate
E. A. Pashitskii, S. V. Mashkevich, S. I. Vilchynskyy
A self-consistent model of the superfluid (SF) state of a Bose liquid with strong interaction between bosons is considered, in which at T=0, along with a weak single-particle Bose-…
cond-mat.soft1999
Bound states of interacting helium atoms
Stefan V. Mashkevich, Stanislav I. Vilchynskyy
We study the possibility of existence of bound states for two interacting He-4 atoms. It is shown that for some potentials, there exist not only discrete levels but also bands akin…