Fig. 1: Indirectly coupled two-magnon system.
From: Non-Hermitian control between absorption and transparency in perfect zero-reflection magnonics
a Schematic diagram of the experimental setup. Two separated YIG spheres (l = 25 mm) coupled to a transmission line are placed under a vertical magnetic field (H-field), the local magnetic field (H + δH) around the YIG 1 is controllable independently by finely adjusting coil current. b Schematic diagram showing the two resonators are side-coupled to a transmission line and indirectly interact with each other mediated by traveling wave with the effective coupling strength of −iΓeiΦ. c Equivalent circuit of the coupled system. Circuit elements used to model the two YIG spheres are marked by the orange and blue box, respectively. d Schematic diagram showing the nearly full absorption (NFA) and nearly full transmission (NFT) under the perfect zero-reflection (PZR) condition.
