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4 papers · 2 filters
Scale separation in granular packings: stress plateaus and fluctuations
C. Goldenberg, A. P. F. Atman, P. Claudin +2
It is demonstrated, by numerical simulations of a 2D assembly of polydisperse disks, that there exists a range (plateau) of coarse graining scales for which the stress tensor field…
Theory of collective opinion shifts: from smooth trends to abrupt swings
Quentin Michard, Jean-Philippe Bouchaud
We unveil collective effects induced by imitation and social pressure by analyzing data from three different sources: birth rates, sales of cell phones and the drop of applause in…
Monte Carlo algorithms for charged lattice gases
L. Levrel, A. C. Maggs
We consider Monte Carlo algorithms for the simulation of charged lattice gases with purely local dynamics. We study the mobility of particles as a function of temperature and show…
Electrostatic Cancellation of Gravity Effects in Liquid Mixtures
Yoav Tsori, Ludwik Leibler
We point out that a spatially-varying electric field can be used to cancel the effect of gravity in liquid mixtures by coupling to the different components' permittivities. Cancell…