Related papers: Selfinteracting Particle-Antiparticle System of Bosons

Selfinteracting Particle-Antiparticle System of Bosons

URL: http://arxiv.org/abs/2102.02529v3
Date: Thu, 18 Nov 2021 18:27:57 GMT
Title: Selfinteracting Particle-Antiparticle System of Bosons
Authors: D. Anchishkin, V. Gnatovskyy, D. Zhuravel, and V. Karpenko
Abstract summary: A system of boson particles and antiparticles at finite temperatures is studied within the framework of the thermodynamically consistent Skyrme-like mean-field model. It is shown that, independently of the strength of the attractive mean field, at the critical temperature $T_rm c$ the system undergoes the phase transition of second-order to the Bose-Einstein condensate. We obtained that the condensation represents a discontinuity of the derivative of the heat capacity at $T = T_rm c$, and condensate occurs only for the component with a higher particle-number density in the particle-anti
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Thermodynamic properties of a system of interacting boson particles and antiparticles at finite temperatures are studied within the framework of the thermodynamically consistent Skyrme-like mean-field model. The mean field contains both attractive and repulsive terms. Self-consistency relations between the mean field and thermodynamic functions are derived. We assume conservation of the isospin density for all temperatures. It is shown that, independently of the strength of the attractive mean field, at the critical temperature $T_{\rm c}$ the system undergoes the phase transition of second-order to the Bose-Einstein condensate, which exists in the temperature interval $0 \le T \le T_{\rm c}$. We obtained that the condensation represents a discontinuity of the derivative of the heat capacity at $T = T_{\rm c}$, and condensate occurs only for the component with a higher particle-number density in the particle-antiparticle system.

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