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相关论文: Prediction of a Structural Transition in the Hard …

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The quasistatic behavior of a simple 2D model of a cohesive powder under isotropic loads is investigated by Discrete Element simulations. The loose packing states, as studied in a previous paper, undergo important structural changes under…

材料科学 · 物理学 2008-10-27 Francisco Gilabert , Jean-Noël Roux , Antonio Castellanos

We numerically simulate mechanically stable packings of soft-core, frictionless, bidisperse disks in two dimensions, above the jamming packing fraction phi_J. For configurations with a fixed isotropic global stress tensor, we investigate…

无序系统与神经网络 · 物理学 2015-12-23 Yegang Wu , Peter Olsson , S. Teitel

We turn the long time puzzle of the free volume, known for its highly irregular form, into exact analytical formulae and develop statistical mechanics of the hard disk model. The free volume is exactly expressed in terms of the intersection…

统计力学 · 物理学 2026-03-24 Victor M. Pergamenshchik , Taras Bryk , Andrij Trokhymchuk

The freezing transition of hard spheres has been well described by various versions of density-functional theory (DFT). These theories should possess the close-packed crystal as a special limit, which represents an extreme testing ground…

软凝聚态物质 · 物理学 2009-10-31 Benito Groh , Bela Mulder

Debye-H\"{u}ckel theory, originally developed to describe dilute electrolyte solutions, has proved particularly successful as a description of magnetic monopoles in spin ice systems such as Dy$_{2}$Ti$_{2}$O$_{7}$. For this model, Ryzhkin…

强关联电子 · 物理学 2023-12-06 Omar J. Abbas , Steven T. Bramwell , Daan M. Arroo

We investigate dissipation-driven topological phase transitions in one-dimensional quantum open systems governed by the Lindblad equation with linear dissipation operators, which ensure the density matrix retains its Gaussian form…

量子物理 · 物理学 2026-01-27 Tian-Shu Deng , Fan Yang

The structural properties of additive binary hard-sphere mixtures are addressed as a follow-up of a previous paper [S. Pieprzyk et al., Phys. Rev. E 101, 012117 (2020)]. The so-called rational-function approximation method and an approach…

The fluid and solid equations of state for hard parallel squares and cubes are reinvestigated here over a wide range of densities. We use a novel single-speed version of molecular dynamics. Our results are compared with those from earlier…

统计力学 · 物理学 2015-05-13 Wm G Hoover , Carol G Hoover , Marcus N. Bannerman

For a nonlinear system of coupled PDEs, that describes evolution of a viscous thin liquid sheet and takes account of surface tension at the free surface, we show exponential $(H^1,\,L^2)$ asymptotic decay to the flat profile of its…

偏微分方程分析 · 数学 2018-07-04 Marco A. Fontelos , G. Kitavtsev , R. M. Taranets

Using an exact mapping to disordered Coulomb gases, we introduce a novel method to study two dimensional Dirac fermions with quenched disorder in two dimensions which allows to treat non perturbative freezing phenomena. For purely random…

凝聚态物理 · 物理学 2009-11-07 Baruch Horovitz , Pierre Le Doussal

We theoretically study the nematic ordering transition of rods that are able to elastically adjust their mutually excluded volumes. The model rods, which consist of a hard core surrounded by a deformable shell, mimic the structure of…

软凝聚态物质 · 物理学 2009-11-11 K. Shundyak , R. van Roij , P. van der Schoot

We study the strong correlation effects in the vicinity of the Mott metal-insulator transition using coupled clean or disordered Hubbard chains with a infinitely large coordinate number $D_{\perp}\to\infty$ in the direction perpendicular to…

强关联电子 · 物理学 2009-10-31 Satoshi Fujimoto

The free energies of the FCC, BCC, HCP and Simple Cubic phases for hard spheres are calculated as a function of density using the Fundamental Measure Theory models of Rosenfeld et al (PRE 55, 4245 (1997)), Tarazona (PRL 84, 694 (2001)) and…

统计力学 · 物理学 2008-08-20 James F. Lutsko

We investigate dynamical heterogeneities in the collective relaxation of a concentrated microgel system, for which the packing fraction can be conveniently varied by changing the temperature. The packing fraction dependent mechanical…

软凝聚态物质 · 物理学 2011-05-31 David A. Sessoms , Irmgard Bischofberger , Luca Cipelletti , Véronique Trappe

A recent experiment [K. H. Kim, et al., Science 370, 978 (2020)] showed that it may be possible to detect a liquid-liquid phase transition (LLPT) in supercooled water by subjecting high density amorphous ice (HDA) to ultrafast heating,…

统计力学 · 物理学 2021-06-24 Nicolas Giovambattista , Peter H. Poole

We numerically investigate the metastable equilibrium structure of deep supercooled and glassy water under pressure, covering the range of densities corresponding to the experimentally produced high-density and very-high-density amorphous…

软凝聚态物质 · 物理学 2021-11-03 Riccardo Foffi , Francesco Sciortino

The thermodynamic stability of the hard-sphere gas has been examined, using the formalism of scaled particle theory [SPT], and by applying explicitly the conditions of stability required by both the second and third laws of thermodynamics.…

统计力学 · 物理学 2007-05-23 J. F. Kenney

We develop a novel Hybrid High-Order method for the simulation of Darcy flows in fractured porous media. The discretization hinges on a mixed formulation in the bulk region and on a primal formulation inside the fracture. Salient features…

数值分析 · 数学 2017-12-01 Florent Chave , Daniele Di Pietro , Luca Formaggia

Using coherent-state formalism (the Keldysh formalism), the article describes a transition from a homogeneous superfluid state to a supersolid state in a two-dimensional dilute gas of electron-hole pairs with spatially separated components.…

介观与纳米尺度物理 · 物理学 2020-06-24 D. V. Fil , S. I. Shevchenko

We study universal spatial features of certain non-equilibrium steady states corresponding to flows of strongly correlated fluids over obstacles. This allows us to predict universal spatial features of far-from-equilibrium systems, which in…

高能物理 - 理论 · 物理学 2018-10-31 Igor Novak , Julian Sonner , Benjamin Withers