activity
20152026
most citedRepresentation of the grand partition function of the cell model: The state equation in the mean-field approximation

18 citations · 42 across the 20 of their papers we have counts for

collaborators
Showing cond-mat.stat-mechShow all

20 papers · 1 filter

cond-mat.stat-mech2026

Phase diagram of a double-occupancy cell model of a fluid with Curie-Weiss interaction

R. V. Romanik, O. A. Dobush, M. P. Kozlovskii +2

A double-occupancy cell model of a fluid with Curie-Weiss interaction is studied. First, we show that the model is isomorphic to the Blume-Capel model on a complete graph through a…

cond-mat.stat-mech2026

The cell fluid model with Curie-Weiss interactions: special cases and analytical results

O. A. Dobush, M. P. Kozlovskii, I. V. Pylyuk +2

Inspired by previous extensive numerical studies of a cell fluid model with Curie-Weiss interactions, we concentrate on some analytically tractable special cases in its description…

cond-mat.stat-mech2025

Thermodynamic response functions of the Curie-Weiss cell fluid model. I. Supercritical region

M. P. Kozlovskii, O. A. Dobush, R. V. Romanik +2

In this work, we present an analytical study of the thermodynamic response functions of a multiple-occupancy cell fluid model with competing Curie-Weiss attraction and local repuls…

cond-mat.stat-mech2025

Triple point in a cell fluid model with effective temperature-dependent attraction

M. P. Kozlovskii, O. A. Dobush, R. V. Romanik +2

We study a cell fluid model of a many-particle system with Curie-Weiss-type interaction potential. It is considered as an open system in a fixed volume partitioned into a large num…

cond-mat.stat-mech2025

Pair distribution function of the cell fluid model with Curie-Weiss interaction

R. V. Romanik, O. A. Dobush, M. P. Kozlovskii +2

In this paper we present results for the pair distribution function for the cell fluid model with Curie-Weiss interaction. As a supplementary result, one- and two-particle densitie…

cond-mat.stat-mech2025★ 1 cited

Entropy of the cell fluid model with Curie-Weiss interaction

R. V. Romanik, O. A. Dobush, M. P. Kozlovskii +2

Entropy of the cell fluid model with Curie-Weiss interaction is obtained in analytical form as a function of temperature and chemical potential. A parametric equation is derived re…

cond-mat.stat-mech2025

Influence of attractive parts of interaction potentials on critical point parameters

I. V. Pylyuk, O. A. Dobush, M. P. Kozlovskii +2

We investigate how microscopic features of interparticle potentials influence macroscopic critical point parameters. Our analytical calculations are based on the cell model for con…

cond-mat.stat-mech2025★ 1 cited

Influence of microscopic parameters on phase behavior of a cell model with Curie-Weiss interaction

O. A. Dobush, M. P. Kozlovskii, I. V. Pylyuk +1

We investigate how varying two microscopic parameters - cell volume and the ratio between repulsion and attraction intensities - affect the phase behavior of a cell model with a Cu…

cond-mat.stat-mech2024★ 1 cited

A new special function related to a discrete Gauss-Poisson distribution and some physics of the cell model with Curie-Weiss interactions

O. A. Dobush, M. A. Shpot

Inspired by previous studies in statistical physics [see, in particular, Kozitsky at al., A phase transition in a Curie-Weiss system with binary interactions, Condens. Matter Phys.…

cond-mat.stat-mech2024

Supercritical Crossover Lines in the Cell Fluid Model

O. A. Dobush, M. P. Kozlovskii, R. V. Romanik

A cell fluid model with a modified Morse potential is studied. The supercritical states are considered with respect to a possibility to build a separation boundary between liquid-l…

cond-mat.stat-mech2024

Thermodynamic response functions in a cell fluid model

O. A. Dobush, M. P. Kozlovskii, R. V. Romanik +1

Thermodynamic response functions, namely the isothermal compressibility, the thermal pressure coefficient, and the thermal expansion coefficient, are calculated for a many-particle…

cond-mat.stat-mech2023

Analytical calculation of the critical temperature and estimation of the critical region size for a fluid model

I. V. Pylyuk, M. P. Kozlovskii, O. A. Dobush

An analytical procedure for calculating the critical temperature and estimating the size of critical region for a cell fluid model is developed. Our numerical calculations are illu…

cond-mat.stat-mech2023

Morse fluids in the immediate vicinity of the critical point: Calculation of thermodynamic coefficients

I. V. Pylyuk, M. P. Kozlovskii, O. A. Dobush +1

The previously proposed approach for the microscopic description of the critical behavior of Morse liquids based on the cell fluid model is applied to the case where the parameters…

cond-mat.stat-mech2020

Equation of state of a cell fluid model with allowance for Gaussian fluctuations of the order parameter

I. V. Pylyuk, O. A. Dobush

The paper is devoted to the development of a microscopic description of the critical behavior of a cell fluid model with allowance for the contributions from collective variables w…

cond-mat.stat-mech2020

Behavior of a binary asymmetric mixture of interacting particles in the supercritical region

M. P. Kozlovskii, O. A. Dobush

We propose a method for describing a phase behavior of a system consisting of particles of two sorts. The interaction of each species is described by interaction potentials contain…

cond-mat.stat-mech2019★ 2 cited

Phase behavior of a cell fluid model with modified morse potential

M. P. Kozlovskii, O. A. Dobush

The present manuscript gives a theoretical description of the first-order phase transition in a cell fluid model with a modified Morse potential and additional repulsive interactio…

cond-mat.stat-mech2017★ 12 cited

The equation of state of a cell fluid model in the supercritical region

M. P. Kozlovskii, I. V. Pylyuk, O. A. Dobush

The analytic method for deriving the equation of state of a cell fluid model in the region above the critical temperature () is elaborated using the renorma…

cond-mat.stat-mech2017★ 1 cited

Using a fluid cell model for description of a phase transition in simple liquid alkali metals

M. P. Kozlovskii, O. A. Dobush, I. V. Pylyuk

This article embraces a theoretical description of the first order phase transition in liquid metals with application of a cell fluid model. The results are obtained through calcul…

cond-mat.stat-mech2016★ 6 cited

Phase transition in a cell fluid model

M. P. Kozlovskii, O. A. Dobush

We propose a method of describing a phase transition in a cell fluid model with pair interaction potential that includes repulsive and attractive parts. An exact representation of…

cond-mat.stat-mech2015★ 18 cited

Representation of the grand partition function of the cell model: The state equation in the mean-field approximation

Mikhailo Kozlovskii, Oksana Dobush

The method to calculate the grand partition function of a particle system, in which constituents interact with each other via potential, that include repulsive and attractive compo…