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Supersonic kinks in active solids

Presented by: 
Lev Truskinovsky
Wednesday 14th August 2019 - 12:00 to 12:30
INI Seminar Room 1
To show that steadily propagating nonlinear waves in active matter can be driven internally, we develop a prototypical model of a topological kink moving with a constant supersonic speed in a discrete bi-stable FPU chain capable of generating active stress. In contrast to subsonic kinks in such systems, that are necessarily dissipative, the obtained supersonic solutions are purely anti-dissipative. Joint work with N. Gorbushin.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons