Results 21 to 30 of about 386,155 (244)

Birthday Inequalities, Repulsion, and Hard Spheres [PDF]

open access: yes, 2015
We study a birthday inequality in random geometric graphs: the probability of the empty graph is upper bounded by the product of the probabilities that each edge is absent.
Perkins, Will
core   +2 more sources

Memory Formation in Jammed Hard Spheres [PDF]

open access: yesPhysical Review Letters, 2021
Liquids equilibrated below an onset density share similar inherent states, while above that density their inherent states markedly differ. Although this phenomenon was first reported in simulations over 20 years ago, the physical origin of this memory remains controversial. Its absence from mean-field descriptions, in particular, has long cast doubt on
Patrick Charbonneau, Peter K. Morse
openaire   +3 more sources

Uniform shear flow in dissipative gases. Computer simulations of inelastic hard spheres and (frictional) elastic hard spheres [PDF]

open access: yes, 2005
In the preceding paper (cond-mat/0405252), we have conjectured that the main transport properties of a dilute gas of inelastic hard spheres (IHS) can be satisfactorily captured by an equivalent gas of elastic hard spheres (EHS), provided that the latter ...
A. Astillero   +8 more
core   +2 more sources

Hard spheres at a planar hard wall: Simulations and density functional theory

open access: yesCondensed Matter Physics, 2016
Hard spheres are a central and important model reference system for both homogeneous and inhomogeneous fluid systems. In this paper we present new high-precision molecular-dynamics computer simulations for a hard sphere fluid at a planar hard wall.
R.L. Davidchack   +2 more
doaj   +1 more source

Residual Multiparticle Entropy for a Fractal Fluid of Hard Spheres

open access: yesEntropy, 2018
The residual multiparticle entropy (RMPE) of a fluid is defined as the difference, Δs, between the excess entropy per particle (relative to an ideal gas with the same temperature and density), sex, and the pair-correlation contribution, s2.
Andrés Santos   +2 more
doaj   +1 more source

Leaky cell model of hard spheres [PDF]

open access: yesThe Journal of Chemical Physics, 2021
We study packings of hard spheres on lattices. The partition function, and therefore the pressure, may be written solely in terms of the accessible free volume, i.e., the volume of space that a sphere can explore without touching another sphere. We compute these free volumes using a leaky cell model, in which the accessible space accounts for the ...
Thomas G. Fai   +4 more
openaire   +5 more sources

Douglas Henderson: from hard spheres to biological channels

open access: yesCondensed Matter Physics, 2005
On August 7, 2004, the Henderson Symposium on Basic and Applied Statistical Mechanics of Condensed Matter was held at Brigham Young University in Provo, Utah.
A.Trokhymchuk, D.Busath, B.Eisenberg
doaj   +1 more source

Hard sphere packings within cylinders [PDF]

open access: yesSoft Matter, 2016
We extend the identification of close packings up toD= 4.00σand find 17 new structures.
Fu, Lin   +4 more
openaire   +3 more sources

Configurational entropy of hard spheres

open access: yes, 2007
We numerically calculate the configurational entropy S_conf of a binary mixture of hard spheres, by using a perturbed Hamiltonian method trapping the system inside a given state, which requires less assumptions than the previous methods [R.J. Speedy, Mol.
Angelani L   +11 more
core   +1 more source

A percolating hard sphere model [PDF]

open access: yesRandom Structures & Algorithms, 2008
AbstractGiven a homogeneous Poisson point process in ℝd, Häggström and Meester (Random Struct Algorithms 9 (1996) 295–315) asked whether it is possible to place spheres (of differing radii) centred at the points, in a translation‐invariant way, so that the spheres do not overlap but there is an unbounded component of touching spheres. We prove that the
Cotar, Codina   +2 more
openaire   +3 more sources

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