Phase Transition in Particle Systems with a Nonnegatively Defined Interaction Potential
- Authors: Nikolaev P.N.1
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Affiliations:
- Department of Physics
- Issue: Vol 73, No 3 (2018)
- Pages: 263-268
- Section: Theoretical and Mathematical Physics
- URL: https://journals.rcsi.science/0027-1349/article/view/164989
- DOI: https://doi.org/10.3103/S002713491803013X
- ID: 164989
Cite item
Abstract
We have obtained equations for calculating the parameters of phase transitions in particle systems with a nonnegatively defined interaction potential. The parametrized Gibbs distribution is part of the basis of our derivation. It takes the features of a non-negatively defined interaction potential into account and leads to the corresponding Bogolyubov chain of equations. Using this approach, we obtain a convenient method for finding the free energy of the system. On the basis of this method, we have studied the phase transition in a system of hard spheres and the dependence of the phase-transition temperature on the temperature of argon at high pressures.
About the authors
P. N. Nikolaev
Department of Physics
Author for correspondence.
Email: nikolaev@phys.msu.ru
Russian Federation, Moscow