Science and Engineering at The University of Edinburgh

Theory Club

Explanatory note

This is a roughly weekly series of didactical blackboard talks focussing on some theoretical aspect of Condensed Matter, Biological, and Statistical Physics. The range of topics is sufficiently loosely defined that core interests within SUPA's CMMP theme, the agent-based modelling of complex systems relevant to the NANIA project, or whatever else takes our fancy are all accommodated.

Actually, the best way to find out what we talk about is to look at the list of titles below.

If you're wanting to receive mailings about these talks, request a topic for discussion, or - even better - offer to lead the discussion yourself, please email either Peter Mottishaw or Chay Paterson.

Week beginning 22 May 2016

Wednesday 25 May 16 - 11:30am - 2511

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

Adrian Baule

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)

Most recent meetings

Wednesday 11 May 16 - 11:30am

Dynamical Density Functional Theory.

Ben Goddard

Wednesday 4 May 16 - 11:30am

Counting processes in cancer biology.

Bartek Waclaw

Wednesday 27 Apr 16 - 11:30am

Random Walks, First Returns and Sparre Andersen Theorem.

Martin Evans

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