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We explore the possible phases of a condensed dark matter (DM) candidate taken to be in the form of a fermion with a Yukawa coupling to a scalar particle, at zero temperature but at finite density. This theory essentially depends on only…

高能物理 - 唯象学 · 物理学 2022-12-21 Raghuveer Garani , Michel H. G. Tytgat , Jérôme Vandecasteele

We implement molecular dynamics simulations in canonical ensemble to study the effect of confinement on a $2d$ crystal of point particles interacting with an inverse power law potential proportional to $r^{-12}$ in a narrow channel. This…

软凝聚态物质 · 物理学 2014-09-30 M. Ebrahim Foulaadvand , Neda Ojaghlou

The effect of open boundary conditions for four models with quenched disorder are studied in finite samples by numerical ground state calculations. Extrapolation to the infinite volume limit indicates that the configurations in ``windows''…

无序系统与神经网络 · 物理学 2009-10-31 A. Alan Middleton

We present Direct Numerical Simulation (DNS) of heavy inertial particles (dust) immersed in two-dimensional turbulent flow (gas). The dust are modeled as mono-dispersed heavy particles capable of modifying the flow through two-way coupling.…

流体动力学 · 物理学 2019-07-31 Vikash Pandey , Dhrubaditya Mitra , Prasad Perlekar

Using a multiple-image reconstruction method applied to a harmonically trapped Bose gas, we determine the equation of state of uniform matter across the critical transition point, within the local density approximation. Our experimental…

量子气体 · 物理学 2020-10-14 C. Mordini , D. Trypogeorgos , A. Farolfi , L. Wolswijk , S. Stringari , G. Lamporesi , G. Ferrari

We present a comparative computer simulation study of the phase diagrams and anomalous behavior of two-dimensional ($2D$) and quasi-two-dimensional ($q2D$) classical particles interacting with each other through isotropic core-softened…

软凝聚态物质 · 物理学 2019-06-14 Yu. D. Fomin , E. N. Tsiok , V. N. Ryzhov

We experimentally investigate the statistical behaviour of a model two-dimensional granular system undergoing stationary sedimentation. Buoyant cylindrical particles are rotated in liquid-filled drum, thus confined in a harmonic centripetal…

软凝聚态物质 · 物理学 2019-05-01 Nariaki Sakaï , Sébastien Moulinet , Frédéric Lechenault , Mokhtar Adda-Bedia

We use the recently derived density of states for a particle confined to a spherical well in three dimensional fuzzy space to compute the thermodynamics of a gas of non-interacting fermions confined to such a well. Special emphasis is…

高能物理 - 理论 · 物理学 2016-01-20 F. G. Scholtz , J. N. Kriel , H. W. Groenewald

Hard sphere systems in two dimensions are examined for arbitrary density. Simulation results are compared to the theoretical predictions for both the low and the high density limit, where the system is either disordered or ordered,…

统计力学 · 物理学 2009-11-07 S. Luding

We propose a novel method of determination of the dust particle spatial distribution in dust clouds that form in three-dimensional (3D) complex plasmas under microgravity conditions. The method utilizes the data obtained during the 3D…

The phenomenon of nonlinear wave mixing is investigated in a Yukawa one-component plasma using two-dimensional classical Langevin molecular dynamics simulations. The wave spectrum indicates that nonlinear interactions between the excited…

等离子体物理 · 物理学 2025-11-04 Ajaz Mir , Farida Batool , Sanat Tiwari , Abhijit Sen

We analyze the acoustic collective excitations in two- and three-dimensional binary Yukawa systems, consisting of two components with different masses. Theoretical analysis reveals a profound difference between the weakly and strongly…

等离子体物理 · 物理学 2012-08-07 Gabor J. Kalman , Zoltán Donkó , Peter Hartmann , Kenneth I. Golden

We explore the ground state phase diagram and nonequilibrium dynamics of genuine two-component particle-imbalanced droplets in both isotropic and anisotropic three-dimensional confinements. A gradual transition from mixed droplet-gas to gas…

We introduce a simple model consisting of two or three coupled one-dimensional channels of particles with Yukawa interactions. For the two channel system, when an external drive is applied only to the top or primary channel, we find a…

软凝聚态物质 · 物理学 2015-05-20 C. Reichhardt , C. Bairnsfather , C. J. Olson Reichhardt

The influence of confinement, due to flat parallel structureless walls, on phase separation in colloid-polymer mixtures, is investigated by means of grand-canonical Monte Carlo simulations. Ultra-thin films, with thicknesses between…

软凝聚态物质 · 物理学 2009-11-11 Richard L. C. Vink , Andres De Virgiliis , Juergen Horbach , Kurt Binder

Although molecular dynamics (MD) simulations are commonly used to predict the structure and properties of glasses, they are intrinsically limited to short time scales, necessitating the use of fast cooling rates. It is therefore challenging…

The isothermal compression of a dilute nucleonic gas invoking cluster degrees of freedom is studied in an equilibrium statistical model; this clusterized system is found to be more stable than the pure nucleonic system. The equation of…

核理论 · 物理学 2008-11-26 J. N. De , S. K. Samaddar

One-dimensional and quasi-one-dimensional strongly-coupled dusty plasma rings have been created experimentally. Longitudinal (acoustic) and transverse (optical) dispersion relations for the 1-ring were measured and found to be in very good…

等离子体物理 · 物理学 2010-04-08 T. E. Sheridan , J. C. Gallagher

We have improved the procedure for calculating distribution functions and the thermal equation of state for real gases by introducing modified functions of probability distributions into the gas phase state sum. Calculation of real gas…

统计力学 · 物理学 2012-09-12 A. I. Liutuy , L. N. Glushko , A. A. Ostapenko

We investigate the microtubule polymerization dynamics with catastrophe and rescue events for three different confinement scenarios, which mimic typical cellular environments: (i) The microtubule is confined by rigid and fixed walls, (ii)…

亚细胞过程 · 定量生物学 2015-05-12 Björn Zelinski , Nina Müller , Jan Kierfeld