# Mean-field approach for random close packings of non-spherical particles

#### Mean-field approach for random close packings of non-spherical particles

- Event time: 11:30am
- Event date: 25th May 2016
- Speaker: Adrian Baule (Queen Mary University of London)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

Random packings of objects of a particular shape are ubiquitous in science and engineering. However, such jammed matter states have eluded any systematic theoretical treatment due to the strong positional and orientational correlations involved. Here, a mean field theory based on a statistical treatment of the Voronoi volume is discussed, which allows for the calculation of the random close packing fractions of spherical as well as non-spherical particles [1]. This approach captures in particular the density peaks observed in simulations of different classes of non-spherical shapes. A phase diagram is presented that describes packings of elongated shapes such as spherocylinders and dimers in terms of an analytic continuation from the spherical random close packing [2].

[1] A. Baule, R. Mari, L. Bo, L. Portal, and H. A. Makse, Nature Commun. 4, 2194 (2013)

[2] A. Baule and H. A. Makse, Soft Matter 10, 4423 (2014)

[1] A. Baule, R. Mari, L. Bo, L. Portal, and H. A. Makse, Nature Commun. 4, 2194 (2013)

[2] A. Baule and H. A. Makse, Soft Matter 10, 4423 (2014)

### About Statistical Physics and Complexity Group meetings

This is a weekly series of informal talks focussing on some theoretical aspect of Condensed Matter, Biological, and Statistical Physics..

Find out more about Statistical Physics and Complexity Group meetings.