Non-Hermitian Band Topology and Skin Modes in Active Elastic Media
Non-Hermitian Band Topology and Skin Modes in Active Elastic Media
Solids built out of active components can exhibit nonreciprocal elastic coefficients that give rise to non-Hermitian wave phenomena. Here, we investigate non-Hermitian effects present at the boundary of two-dimensional active elastic media obeying two general assumptions: their microscopic forces conserve linear momentum and arise only from static deformations. Using continuum …