“The Non-Hermitian physics of odd Robotic Matter” by Corentin Coulais скачать в хорошем качестве

“The Non-Hermitian physics of odd Robotic Matter” by Corentin Coulais

Controlling how waves propagate, attenuate and amplify in simple, scalable geometric structures is a daunting challenge for science and technology. In this talk, I will discuss how odd matter—in which microscopic interactions are asymmetric and non-conservative—can be used to steer mechanical waves in unprecedented ways. Combining experiments on mechanical lattices of distributed robots with wave physics and continuum and topological mechanics, I will discuss the emergence of the non-Hermitian skin effect, of non-Hermitian topological waves and of one-way solitons. I will further show how these odd waves can be used to induce locomotion and unusual responses to impacts and hence pave the way towards a novel generation of materials with animate properties. References: 1. Active impact and locomotion in robotic matter with nonlinear work cycles Brandenbourger M., Scheibner C., Veenstra J., Vitelli V., Coulais C., [arXiv:2108.08837](https://arxiv.org/abs/2108.08837) 2. Topolo