Radiation-free and non-Hermitian topology inertial defect states of on-chip magnons
Radiative damping is a strong dissipation source for the quantum emitters hybridized with propagating photons, electrons, or phonons, which is not easily avoidable for on-chip magnonic emitters as well that Television can radiate via the surface acoustic waves of the substrate.Here we demonstrate in an array of on-chip nanomagnets coupled in a long