Zobrazeno 1 - 10
of 377
pro vyhledávání: '"van Saarloos, W."'
While frictionless spheres at jamming are isostatic, frictional spheres at jamming are not. As a result, frictional spheres near jamming do not necessarily exhibit an excess of soft modes. However, a generalized form of isostaticity can be introduced
Externí odkaz:
http://arxiv.org/abs/0907.3451
We study the vibrational modes of three-dimensional jammed packings of soft ellipsoids of revolution as a function of particle aspect ratio $\epsilon$ and packing fraction. At the jamming transition for ellipsoids, as distinct from the idealized case
Externí odkaz:
http://arxiv.org/abs/0904.1558
Fluctuations of the interface between coexisting colloidal fluid phases have been measured with confocal microscopy. Due to a very low surface tension, the thermal motions of the interface are so slow, that a record can be made of the positions of th
Externí odkaz:
http://arxiv.org/abs/0806.2935
Autor:
de Villeneuve, V. W. A., van Leeuwen, J. M. L., de Folter, J. W. J., Aarts, D. G. A. L., van Saarloos, W., Lekkerkerker, H. N. W.
We report on the residence times of capillary waves above a given height $h$ and on the typical waiting time in between such fluctuations. The measurements were made on phase separated colloid-polymer systems by laser scanning confocal microscopy. Du
Externí odkaz:
http://arxiv.org/abs/0710.5217
Publikováno v:
Phys. Rev. E 70, 026209 (2004)
The dynamics of vortices in type II superconductors exhibit a variety of patterns whose origin is poorly understood. This is partly due to the nonlinearity of the vortex mobility which gives rise to singular behavior in the vortex densities. Such sin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403384
As is well known, the extrusion rate of polymers from a cylindrical tube or slit (a ``die'') is in practice limited by the appearance of ``melt fracture'' instabilities which give rise to unwanted distortions or even fracture of the extrudate. We pre
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211461
Morphological Instability and Dynamics of Fronts in Bacterial Growth Models with Nonlinear Diffusion
Autor:
Mueller, J., van Saarloos, W.
Publikováno v:
Phys.Rev.E65:061111,2002
It has been argued that there is biological and modeling evidence that a non-linear diffusion coefficient of the type D(b) = D_0 b^{k} underlies the formation of a number of growth patterns of bacterial colonies. We study a reaction-diffusion system
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211463
Publikováno v:
Surf. Sci. 521, 10 (2002)
We have used the indium/copper surface alloy to study the dynamics of surface vacancies on the Cu(001) surface. Individual indium atoms that are embedded within the first layer of the crystal, are used as probes to detect the rapid diffusion of surfa
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110656
Publikováno v:
Surf. Sci. 521, 26 (2002)
We develop a version of the vacancy mediated tracer diffusion model, which follows the properties of the physical system of In atoms diffusing within the top layer of Cu(001) terraces. This model differs from the classical tracer diffusion problem in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110657
Publikováno v:
Phys. Rep. vol. 361, 267-417 (2002)
An introductory survey of the theoretical ideas and calculations and the experimental results which depart from Landau Fermi-liquids is presented. Common themes and possible routes to the singularities leading to the breakdown of Landau Fermi liquids
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103393