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相关论文: Gravity induced evolution of a magnetized fermion …

200 篇论文

We study the charged non-relativistic Bose gas interacting with a constant magnetic field but which is otherwise free. The notion of Bose-Einstein condensation for the three dimensional case is clarified, and we show that although there is…

统计力学 · 物理学 2009-10-30 Guy B. Standen , David J. Toms

The paper discusses a collapse of a self-interacting electrically charged scalar field in the decoupling limit of the dilatonic Gauss-Bonnet gravity. The emerging spacetimes were either non-singular or singular and containing black holes of…

广义相对论与量子宇宙学 · 物理学 2022-10-18 Anna Nakonieczna , Łukasz Nakonieczny

In this paper, we study the model of the late universe with the homogeneous, isotropic and flat Friedmann-Robertson-Walker metric, where the source of the gravitational field is based on the fermion and boson field, with the Maxwell term…

广义相对论与量子宇宙学 · 物理学 2020-07-13 O. Razina , P. Tsyba , B. Meirbekov , R. Myrzakulov

Free cooling of a gas of inelastically colliding hard spheres represents a central paradigm of kinetic theory of granular gases. At zero gravity the temperature of a freely cooling homogeneous granular gas follows a power law in time. How…

软凝聚态物质 · 物理学 2009-11-11 Dmitri Volfson , Baruch Meerson , Lev S. Tsimring

This paper is devoted to investigate the dynamics of the self gravitating adiabatic and anisotropic source in $5D$ Einstein Gauss-Bonnet gravity. To this end, the source has been taken as Tolman-Bondi model which preserve inhomogeneity in…

综合物理 · 物理学 2015-04-30 G. Abbas , M. Zubair

We consider the dynamics of a gas of free bosons within a semi-classical Fokker-Planck equation for which we give a physical justification. In this context, we find a striking similarity between the Bose-Einstein condensation in the…

统计力学 · 物理学 2009-11-11 Julien Sopik , Clement Sire , Pierre-Henri Chavanis

Spontaneous magnetization of a two-dimensional electron gas (2DEG) is discussed. It takes place for sufficiently high electron density (i.e. for a quantum fluid state) with $r_s<10$ which is quite beyond the condition of Wigner…

强关联电子 · 物理学 2007-05-23 V. Vyurkov , A. Vetrov

The thermodynamical properties of a neutral vector boson gas in a constant magnetic field are studied starting from the spectrum given by Proca formalism. Bose Einstein Condensation (BEC) and magnetization are obtained, for the three and…

高能物理 - 唯象学 · 物理学 2017-10-25 G. Quintero Angulo , A. Pérez Martínez , H. Pérez Rojas

We study orbital magnetism of a degenerate electron gas in a number of two-dimensional integrable systems, within linear response theory. There are three relevant energy scales: typical level spacing, the energy related to the inverse time…

介观与纳米尺度物理 · 物理学 2009-10-28 E. Gurevich , B. Shapiro

We report thermodynamic magnetization measurements of a 2-dimensional electron gas for several high mobility Si-MOSFETs. The low-temperature magnetization is shown to be strongly sub-linear function of the magnetic field. The susceptibility…

强关联电子 · 物理学 2009-11-02 N. Teneh , A. Yu. Kuntsevich , V. M. Pudalov , T. M. Klapwijk , M. Reznikov

We derive self-similar solutions including cooling and heating in an Einstein de-Sitter universe, and investigate the effects of cooling and heating on the gas density and temperature distributions. We assume that the cooling rate has a…

天体物理学 · 物理学 2009-11-10 Shuji Uchida , Tatsuo Yoshida

We study the limiting behavior of a singularly perturbed Schr\"odinger-Poisson system describing a 3-dimensional electron gas strongly confined in the vicinity of a plane $(x,y)$ and subject to a strong uniform magnetic field in the plane…

偏微分方程分析 · 数学 2010-07-27 Fanny Delebecque-Fendt , Florian Mehats

The phenomenon of Bose-like condensation, the continuous change of the dimensionality of the particle distribution as a consequence of freezing out of one or more degrees of freedom in the low particle density limit, is investigated…

统计力学 · 物理学 2009-10-31 Dragoş-Victor Anghel

Motivated by the precision attained by SQUID devices in measuring magnetic fields, we study in this article the thermodynamic behaviour of a fermion gas in two and three dimen\-sional spatial space with noncommutative coordinates and…

高能物理 - 理论 · 物理学 2016-06-14 S. Franchino Viñas , F. Vega

Ordinary differential equations describing the self-similar collapse of a rotating, magnetized, self-gravitating and isothermal filament are derived. Explicit homologous solutions are studied with special emphasis on the bifurcation that…

天体物理学 · 物理学 2009-11-07 P. Hennebelle

In this paper, we investigate the time evolution an accreting magneto-fluid with finite conductivity. For the case of a thin disk, the fluid equations along with Maxwell equations are derived in a simplified, one-dimensional model that…

高能天体物理现象 · 物理学 2020-08-12 F. Habibi , R. Pazhouhesh , M. Shaghaghian

We study the gravitational collapse of a spherically symmetric anisotropic relativistic star within Einstein theory of gravity making use of one of our recently developed collapsing stellar models [{\it Astrophys. Space Sci.} {\bf361} 99…

广义相对论与量子宇宙学 · 物理学 2022-01-05 Shyam Das , Bikash Chandra Paul , Ranjan Sharma

We discuss the Bose-Einstein condensation of relativistic vector charged particles in a strong external magnetic field in very dense matter, as may be paired spin-up electrons. We show that for electrons such systems may maintain…

天体物理学 · 物理学 2007-05-23 H. Perez Rojas , A. Perez Martinez , H. Mosquera Cuesta

Motivated by recent experiments on rotating Bose-Einstein condensates, we investigate a rotating, polarized Fermi gas trapped in an anharmonic potential. We apply a semiclassical expansion of the density of states in order to determine how…

统计力学 · 物理学 2015-05-13 Kiel Howe , Aristeu R. P. Lima , Axel Pelster

We theoretically investigate thermodynamic properties in a quasi-one-dimensional single-component dipolar Fermi gas at finite temperatures. The self-bound fermionic droplet can be achieved by exchange correlations with the long-range…

量子气体 · 物理学 2025-12-11 Lanxuan Gao , Koki Takayama , Hiroyuki Tajima , Takahiro M. Doi , Haozhao Liang