Reverse Engineering of Design Principles using Biased Dynamics

Add to your list(s) Download to your calendar using vCal

• Mike Cates (University of Cambridge)
• Tuesday 15 January 2019, 17:00-18:00
• Seminar Room 1, Newton Institute.

If you have a question about this talk, please contact INI IT.

DNMW01 - Optimal design of complex materials

Suppose we want to create a material with a certain unusual property. One strategy is to start with a model of an existing material without that property, and bias its dynamics to sample unlikely trajectories for which the atypical property is pres ent. Looking at the biased trajectories, it may be possible to spot some choice of local interactions that would achieve the required effect. I will describe an instance of this in the realm of self-propelled spherical colloids. Here, biasing the ensemble to reduce colloidal collisions creates states in which the propulsion directions have polar order: accordingly, collisions can be reduced by introducing polar interactions. While this particular outcome is relatively obvious, the method is generalizable in principle to more complex cases where genuinely new design principles might emerge.

Coauthors: Takahiro Nemoto, Étienne Fodor, Robert L. Jack, Julien Tailleur

Reference: Optimizing active work: dynamical phase transitions, collective motion and jamming. T. Nemoto et al, arXiv 1805.02887

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

• All CMS events
• Featured lists
• INI info aggregator
• Isaac Newton Institute Seminar Series
• School of Physical Sciences
• Seminar Room 1, Newton Institute
• bld31

Note that ex-directory lists are not shown.