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The saturation conditions for bending modes in inhomogeneous thin stellar disks that follow from an analysis of the dispersion relation are compared with those derived from $N$-body simulations. In the central regions of inhomogeneous…

天体物理学 · 物理学 2009-11-10 N. Ya. Sotnikova , S. A. Rodionov

Here, we compare the stabilities of different III-V crystals configurations on stepped Si substrates, with or without anti-phase boundaries, for abrupt and compensated interfaces, using density functional theory. Thermodynamic stability of…

材料科学 · 物理学 2024-08-29 D. Gupta , S. Pallikkara Chandrasekharan , S. Thébaud , C. Cornet , L. Pedesseau

The dependence of gas giant planet occurrence rate on stellar metallicity has been firmly established. We extend this so-called planet-metallicity correlation to broader ranges of metallicities and planet masses/radii. In particular, we…

地球与行星天体物理 · 物理学 2016-12-14 Wei Zhu , Ji Wang , Chelsea Huang

The present study reports experiments of water droplet impacting on ice or on a cold metallic substrate, with the aim of understanding the effect of phase change on the impingement process. Both liquid and substrate temperatures are varied,…

流体动力学 · 物理学 2024-09-26 Wladimir Sarlin , Rodolphe Grivet , Julien Xu , Axel Huerre , Thomas Séon , Christophe Josserand

In this article, we study the spreading of droplets of density-matched granular suspensions on the surface of a solid. Bidispersity of the particle size distribution enriches the conclusions drawn from monodisperse experiments by…

软凝聚态物质 · 物理学 2023-01-25 Alice Pelosse , Élisabeth Guazzelli , Matthieu Roché

A new approach for reducing error of the volume penalization method is proposed. The mask function is modified by shifting the interface between solid and fluid by ({\nu}{\eta})^0.5 toward the fluid region, where {\nu} and {\eta} are the…

计算物理 · 物理学 2014-09-05 Wakana Iwakami , Yuzuru Yatagai , Nozomu Hatakeyama , Yuji Hattori

We determine finite temperature corrections to the heavy-quark (static) potential as a function of the shear viscosity to entropy density ratio in a strongly coupled, large-$N_c$ conformal field theory dual to five-dimensional Gauss-Bonnet…

高能物理 - 唯象学 · 物理学 2009-09-02 Jorge Noronha , Adrian Dumitru

We compare rigidity of materials in two phases, liquid and solid phases. As a measure of the rigidity, we employ the one characterizing how firmly the material is fixed by low density of pinning centers, such as impurities and rough…

统计力学 · 物理学 2015-12-03 Naoki Hasegawa , Tatsuro Yuge , Akira Shimizu

The stability of a quasicrystalline structure, recently obtained in a molecular-dynamics simulation of rapid cooling of a binary melt, is analyzed for binary hard-sphere mixtures within a density-functional approach. It is found that this…

材料科学 · 物理学 2017-02-08 H. M. Cataldo

We demonstrate that the discrete character of the vibrational spectrum of a small crystal accounts for size dependence of its thermodynamic properties and melting temperature. Using a self-consistent statistical method [Phys. Rev.B 66,…

材料科学 · 物理学 2009-11-13 A. I. Karasevskii , V. V. Lubashenko

The metastable vapor-liquid coexistence of short-range attractive fluids hinders the formation of crystal nuclei, which in turn makes difficult the progress of the system towards its vapor-solid ground state. In this letter we show that…

介观与纳米尺度物理 · 物理学 2011-05-16 Gerardo Odriozola , Felipe Jiménez-Ángeles , Pedro Orea

The evolution of $V_\mathrm{P}/V_\mathrm{S}$ with increasing fluid-saturated porosity is computed for isotropic rocks containing spheroidal pores. $V_\mathrm{P}/V_\mathrm{S}$ is shown to either decrease or increase with increasing porosity,…

地球物理 · 物理学 2019-01-03 Nicolas Brantut , Emmanuel C. David

We address finite crystallization in two dimensions in the presence of a flat crystalline substrate. Particles interact through short-range two- and three-body potentials favoring local square-lattice arrangements. An additional interaction…

介观与纳米尺度物理 · 物理学 2025-09-09 Manuel Friedrich , Leonard Kreutz , Ulisse Stefanelli

A new phase field crystal (PFC) type theory is presented, which accounts for the full spectrum of solid-liquid-vapor phase transitions within the framework of a single density order parameter. Its equilibrium properties show the most…

材料科学 · 物理学 2015-06-23 Gabriel Kocher , Nikolas Provatas

This paper is the fifth in a series exploring the physical consequences of the solidity of glass-forming liquids. Paper IV proposed a model where the density field is described by a time-dependent Ginzburg-Landau equation of the…

软凝聚态物质 · 物理学 2009-11-13 Jeppe C. Dyre

Examples of heavy mineral placer deposits are presented in which wave reflection, refraction, diffraction and resonance would appear to have played a major concentrating role. Their geometry is compared with the computer generated patterns…

地球物理 · 物理学 2007-05-23 S. J. Childs , F. A. Shillington

In this paper a model for partial melts is constructed using two-scale homogenization theory. While this technique is well known to the mathematics and materials communities, it is relatively novel to problems in the solid Earth. This…

地球物理 · 物理学 2015-05-13 Gideon Simpson , Marc Spiegelman , Michael I. Weinstein

We reply to the comment by Jung, Bokes, and Godby (arXiv:0706.0140) on our paper Phys. Rev. Lett. 94, 186810 (2005). We show that the results in their comment should not be taken as an indication that the viscosity corrections to the…

介观与纳米尺度物理 · 物理学 2007-06-19 Na Sai , Michael Zwolak , Giovanni Vignale , Massimiliano Di Ventra

The model under consideration is a two-dimensional two-component plasma, stable against collapse for the dimensionless coupling constant $\beta<2$. The combination of a technique of renormalized Mayer expansion with the mapping onto the…

统计力学 · 物理学 2007-05-23 L. Šamaj , I. Travěnec

A continuum density-field formulation with particle-scale resolution is constructed to simultaneously incorporate the orientation dependence of interparticle interactions and the rotational invariance of the system, a fundamental but…

材料科学 · 物理学 2018-05-28 Zi-Le Wang , Zhirong Liu , Zhi-Feng Huang