16 citations · 46 across the 32 of their papers we have counts for
32 papers
Complex scalar relativistic field as a probability amplitude
Yu. M. Poluektov
A relativistic equation for a neutral complex field as a probability amplitude is proposed. The continuity equation for the probability density is obtained. It is shown that there…
On the relativistic description of charges fermions
Yu. M. Poluektov
A method for describing charged relativistic Fermi fields is proposed, in which particles of opposite charges are treated equally and states with negative energy are excluded. The…
Statistical Description of Fermi System over a Surface in a Uniform External Field
Yu. M. Poluektov, A. A. Soroka
A statistical approach to the description of the thermodynamic properties of the Fermi particle system occupying a half-space over a plane of finite size in a uniform external fiel…
Bose-Einstein condensation at constant pressure
Yu. M. Poluektov
In the weakly non-ideal gas model [1], the Bose-Einstein condensation at constant pressure is considered. The temperature of transition to the state with condensate is found. Tempe…
Thermodynamic functions of the Fermi gas at arbitrary temperatures
Yu. M. Poluektov, A. A. Soroka
Thermodynamic functions of the ideal Fermi gas at arbitrary temperatures are calculated using the standard Fermi-Stoner functions. The properties of the Fermi-Stoner functions are…
Coherence, broken symmetry and nondissipative motion of a quantum oscillator
Yu. M. Poluektov
On the example of a quantum oscillator the connection of the dynamical coherent state with the phase symmetry breaking and the existence of the nondissipative motion is considered.…
Thermodynamics of the Fermi gas in a cubic cavity of an arbitrary volume
Yu. M. Poluektov, A. A. Soroka
For the Fermi gas filling the space inside a cubic cavity of a fixed volume, at arbitrary temperatures and number of particles, the thermodynamic characteristics are calculated, na…
On the thermodynamics of two-level Fermi and Bose nanosystems
Yu. M. Poluektov, A. A. Soroka
Equations are obtained for the quantum distribution functions over discrete states in systems of non-interacting fermions and bosons with an arbitrary, including small, number of p…
Quantum relativistic equation for a probability amplitude
Yu. M. Poluektov
The relativistic quantum equation is proposed for the complex wave function, which has the meaning of a probability amplitude. The Lagrangian formulation of the proposed theory is…
Quantum distribution functions in systems with an arbitrary number of particles
Yu. M. Poluektov, A. A. Soroka
Expressions for the entropy and equations for the quantum distribution functions in systems of non-interacting fermions and bosons with an arbitrary, including small, number of par…
The modification of exponents in the Ginzburg-Sobyanin theory of superfluidity
Yu. M. Poluektov
A suggested amendment to the temperature dependencies in the thermodynamic potential of the Ginzburg-Sobyanin theory of superfluidity, which makes it possible to obtain critical ex…
Does a massless Goldstone boson exist?
Yu. M. Poluektov
Classical and quantum complex nonlinear scalar fields are considered. A new approach to the quantization of nonlinear fields and the construction of a perturbation theory with allo…
To the theory of phase transition of a binary solution into an inhomogeneous phase
Yu. M. Poluektov, A. A. Soroka
In the framework of the theoretical model of the phase transition of binary solutions into spatially inhomogeneous states proposed earlier by the autors [1], which takes into accou…
Phase transition in a phonon gas with pair correlation
Yu. M. Poluektov
The phase transition to the state of a phonon gas with pairwise correlations of interacting phonons with opposite momenta is studies. A method for describing such phonon systems wi…
Phonon and optical-roton branches of excitations of the Bose system
Yu. M. Poluektov, A. A. Soroka
For a system of a large number of Bose particles, a chain of coupled equations for the averages of field operators is obtained. In the approximation where only the averages of one…
Nuclear and electronic coherence in superfluid helium
Yu. M. Poluektov
A semi-phenomenological model of a many-particle system of 4He atoms is proposed, in which a helium atom is considered as a complex consisting of a nucleus and a bound pair of elec…
Debye model for the surface phonons
Yu. M. Poluektov
A quantum description of the surface waves in an isotropic elastic body without the use of the semiclassical quantization is proposed. The problem about the surface waves is formul…
Accounting for the long-range forces in the model of hard sphere
Yu. M. Poluektov
A method for taking into account the long-range potential of atoms in the framework of the hard-sphere model is proposed. It is shown that thermodynamic quantities can be represent…
The two-parameter Debye model
Yu. M. Poluektov
When analyzing thermodynamic and kinetic properties of crystals whose anisotropy is not large and the considered effects do not relate to the existence of singled-out directions in…
Waves in a Bose-Einstein condensate of atoms with a dipole moment
Yu. M. Poluektov, A. A. Soroka
Based on the modified Gross-Pitaevskii equation for atoms with intrinsic dipole moments which accounts for the relaxation of a condensate, the dipole-dipole interaction and the int…
Nonlinear effects in the phonon system of diamond crystal
A. S. Naumovets, Yu. M. Poluektov, V. D. Khodusov
Thermodynamic properties of diamond are theoretically investigated on the ground of self-consistent description of a phonon gas in lattice, which generalizes the Debye model with t…
On the probability interpretation of wave functions in the Dirac theory
Yu. M Poluektov
It is suggested symmetric relative to particles and antiparticles formulation of the Dirac theory, in which the states with negative energy are excluded. The fields of particles an…
Bose-Einstein condensation in a mixture of interacting Bose and Fermi particles
Yu. M. Poluektov, A. A. Soroka
A self-consistent field model for a mixture of Bose and Fermi particles is formulated. There is explored in detail the case of a delta-like interaction, for which the thermodynamic…
Dynamics of Bose-Einstein condensate with account of pair correlations
Y. M. Poluektov, A. M. Arslanaliev
The system of dynamic equations for Bose-Einstein condensate at zero temperature with account of pair correlations is obtained. The spectrum of small oscillations of the condensate…