Condensate of μ-Bose gas as a model of dark matter

被引：26

作者：

Gavrilik, A. M. ^{[1
]}

Kachurik, I. I. ^{[1
]}

Khelashvili, M. V. ^{[1
]}

Nazarenko, A. V. ^{[1
]}

机构：

[1] Bogolyubov Inst Theoret Phys, 14-b Metrolohichna Str, UA-03143 Kiev, Ukraine

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2018年 / 506卷

关键词：

Boson condensate; Deformed bose gas model; Nonstandard statistics; Critical temperature; Thermodynamic geometry; Dark matter halo; Q-OSCILLATORS; INTERCEPTS; PARTICLES; ENERGY;

D O I：

10.1016/j.physa.2018.05.001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Though very popular, Bose-Einstein condensate models of dark matter have some difficulties. Here we propose the so-called mu-Bose gas model (mu-BGM) as a model of dark matter, able to treat weak points. Within mu-BGM, the mu-dependence of thermodynamics arises through the respective mu-calculus (it generalizes usual differential calculus) and enters the partition function, total number of particles, internal energy, etc. We study thermodynamic geometry of the mu-BGM and find singular behavior of (scalar) curvature, confirming Bose like condensation. The critical temperature of condensation T-C((mu)) 1 for, mu not equal 0 is higher than the boson T-c. We find other important virtues of t-thermodynamics versus usual bosons and conclude: the condensate of mu-Bose gas can serve as (an effective) model of galactic halos dark matter. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：835 / 843

页数：9

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