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We investigate the structure and stability properties of compact astrophysical objects that may be formed from the Bose-Einstein condensation of dark matter. Once the critical temperature of a boson gas is less than the critical…

宇宙学与河外天体物理 · 物理学 2013-03-25 X. Y. Li , T. Harko , K. S. Cheng

We analyze the observed properties of dwarf galaxies, which are dark matter dominated astrophysical objects, by assuming that dark matter is in the form of a strongly - coupled, dilute Bose - Einstein condensate. The basic astrophysical…

宇宙学与河外天体物理 · 物理学 2011-06-02 T. Harko

The possibility that dark matter, whose existence is inferred from the study of the galactic rotation curves, and from the mass deficit in galaxy clusters, can be in a form of a Bose-Einstein Condensate, has been extensively investigated…

广义相对论与量子宇宙学 · 物理学 2015-09-01 Tiberiu Harko , Francisco S. N. Lobo

Once the critical temperature of a cosmological boson gas is less than the critical temperature, a Bose-Einstein Condensation process can always take place during the cosmic history of the universe. In the Bose-Einstein Condensation model,…

广义相对论与量子宇宙学 · 物理学 2015-03-19 T. Harko

We investigate gravitational analogue models to describe slowly rotating objects (e.g., dark-matter halos, or boson stars) in terms of Bose-Einstein condensates, trapped in their own gravitational potentials. We begin with a modified…

广义相对论与量子宇宙学 · 物理学 2014-11-26 Florian Kuhnel , Cornelius Rampf

We present a comprehensive theoretical investigation of Bose-Einstein condensates (BECs) and their manifestations in astrophysical and cosmological contexts. Building upon the foundations of quantum statistics in curved spacetime, we derive…

宇宙学与河外天体物理 · 物理学 2025-08-25 Nader Haddad

If dark matter is composed of massive bosons, a Bose-Einstein Condensation process must have occurred during the cosmological evolution. Therefore, galactic dark matter may be in a form of a self-gravitating condensate, in the presence of…

广义相对论与量子宇宙学 · 物理学 2025-12-23 Zahra Haghani , Tiberiu Harko

We consider the possibility that the dark matter, which is required to explain the dynamics of the neutral hydrogen clouds at large distances from the galactic center, could be in the form of a Bose-Einstein condensate. To study the…

天体物理学 · 物理学 2010-10-27 C. G. Boehmer , T. Harko

If dark matter is composed of massive bosons, a Bose-Einstein Condensation process must have occurred during the cosmological evolution. Therefore galactic dark matter may be in a form of a condensate, characterized by a strong…

广义相对论与量子宇宙学 · 物理学 2018-07-24 Xiaoyue Zhang , Man Ho Chan , Tiberiu Harko , Shi-Dong Liang , Chun Sing Leung

Once the temperature of a bosonic gas is smaller than the critical, density dependent, transition temperature, a Bose - Einstein Condensation process can take place during the cosmological evolution of the Universe. Bose - Einstein…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Tiberiu Harko , Gabriela Mocanu

We study the mechanisms of the gravitational collapse of the Bose-Einstein condensate dark matter halos, described by the zero temperature time-dependent nonlinear Schr\"odinger equation (the Gross-Pitaevskii equation), with repulsive…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Tiberiu Harko

We study self-gravitating bosonic systems, candidates for dark-matter halos, by carrying out a suite of direct numerical simulations (DNSs) designed to investigate the formation of finitetemperature, compact objects in the three-dimensional…

量子气体 · 物理学 2021-06-02 Akhilesh Kumar Verma , Rahul Pandit , Marc E. Brachet

We study Bose-Einstein condensation and formation of Bose stars in the virialized dark matter halos/miniclusters by universal gravitational interactions. We prove that this phenomenon does occur and it is described by kinetic equation. We…

宇宙学与河外天体物理 · 物理学 2018-10-17 D. G. Levkov , A. G. Panin , I. I. Tkachev

By improving the Bose-Einstein condensate model of dark matter through the repulsive three-particle interaction to better reproduce observables such as rotation curves, both different thermodynamic phases and few-particle correlations are…

星系天体物理 · 物理学 2022-11-22 A. M. Gavrilik , A. V. Nazarenko

We consider the global cosmological evolution and the evolution of the density contrast in the Bose-Einstein condensate dark matter model, in the framework of a Post-Newtonian cosmological approach. In the Bose-Einstein model, dark matter…

广义相对论与量子宇宙学 · 物理学 2015-05-27 T. Harko

Once the critical temperature of a cosmological boson gas is less than the critical temperature, a Bose-Einstein Condensation process can always take place during the cosmic history of the universe. Zero temperature condensed dark matter…

星系天体物理 · 物理学 2015-05-30 Tiberiu Harko , Eniko J. M. Madarassy

We study the Bose condensation of scalar dark matter in the presence of both gravitational and self-interactions. Axions and other scalar dark matter in gravitationally bound miniclusters or dark matter halos are expected to condense into…

高能物理 - 唯象学 · 物理学 2020-11-18 Kay Kirkpatrick , Anthony E. Mirasola , Chanda Prescod-Weinstein

Bose-Einstein condensation has been realized in dilute atomic vapors. This achievement has generated immerse interest in this field. Presented is a review of recent theoretical research into the properties of trapped dilute-gas…

软凝聚态物质 · 物理学 2009-10-31 Takeya Tsurumi , Hirofumi Morise , Miki Wadati

Spatiotemporal evolution of a confined Bose-Einstein condensate is studied by numerically integrating the time-dependent Gross-Pitaevskii equation. Self-interference between the successively expanding and reflecting nonlinear matter waves…

超导电性 · 物理学 2009-11-13 Shi-Jie Yang , Quan-Sheng Wu , Shiping Feng , Yu-Chuan Wen , Yue Yu

We analyze the possibility that due to their superfluid properties some compact astrophysical objects may contain a significant part of their matter in the form of a Bose-Einstein condensate. To study the condensate we use the…

太阳与恒星天体物理 · 物理学 2013-05-30 P. H. Chavanis , T. Harko
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