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Oscillations and symmetry breaking in simple models for polymerisation

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23 February 2018

Time: 2:30 - 4:30pm
Speaker: Michael Stich
Venue: G. O. Jones Building, Room 610

At the heart of many theoretical approaches lies a mechanism responsible for spontaneous mirror symmetry breaking, leading finally to stable stationary states of given chirality. In this talk, we discuss two simple models for general chiral polymerisation processes. In the first one, designed to create symmetry breaking in a similar way as in the Frank model, we observe and discuss oscillations of the chiral states.  We compare this to the phenomenon of chiral excursions, found in similar systems, but which do not show permanent symmetry breaking. In the second one we show how the interaction of mechanical forces with nucleation-fragmentation processes can lead to symmetry breaking.

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