6 papers
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-…
The Superfluid State of a Bose Liquid as a Superposition of a Single-Particle and Pair Coherent Condensates
E. A. Pashitskii, S. V. Mashkevich, S. I. Vilchynskyy
One considers the superfluid (SF) state of a Bose liquid with a strong repulsion between bosons, in which at T=0, along with a weak single-particle Bose-Einstein condensate (BEC),…
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…
Chern-Simons Field Theory and Generalizations of Anyons
Stefan Mashkevich
It is well known that charges coupled to a pure Chern-Simons gauge field in (2+1) dimensions undergo an effective change of statistics, i.e., become anyons. We will consider severa…
Comment on ``Additional analytically exact solutions for three-anyons'' and ``Fermion Ground State of Three Particles in a Harmonic Potential Well and Its Anyon Interpolation''
Stefan Mashkevich
The claim put forward in [hep-th/9512051, hep-th/9612244] that the energies of the ``missing'' states of three anyons in a harmonic potential depend linearly on the statistics para…
Fresh look on triality
M. Faber, O. Borisenko, S. Mashkevich +1
Investigating the symmetry in Quantum Chromodynamics (QCD) we show that full QCD with a vacuum of vanishing baryonic number does not lead to metastable phases. Rather in QCD…