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Asymmetric velocity correlations in shearing media
Umeå University, Faculty of Science and Technology, Department of Physics.
2010 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1063-651X, E-ISSN 1095-3787, Vol. 82, no 3, 031303- p.Article in journal (Refereed) Published
Abstract [en]

A model of soft frictionless disks in two dimensions at zero temperature is  simulated with a shearing dynamics to study various kinds of asymmetries in  sheared systems. We examine both single particle properties, the spatial  velocity correlation function, and a correlation function designed to  separate clockwise and counter-clockwise rotational fields from one  another. Among the rich and interesting behaviors we find that the velocity  correlation along the two different diagonals corresponding to compression and  dilation, respectively, are almost identical and, furthermore, that a feature  in one of the correlation functions is directly related to irreversible  plastic events.

Place, publisher, year, edition, pages
The American Physical Society , 2010. Vol. 82, no 3, 031303- p.
Keyword [en]
jamming, velocity correlations
National Category
Condensed Matter Physics
Research subject
URN: urn:nbn:se:umu:diva-35820DOI: 10.1103/PhysRevE.82.031303ISI: 000281517900005OAI: diva2:349382
Available from: 2010-09-07 Created: 2010-09-07 Last updated: 2010-11-08Bibliographically approved

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Olsson, Peter
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