Demonstration of a tunable non-Hermitian nonlinear microwave dimer.

ABSTRACT: Achieving and controlling non-reciprocity in engineered photonic structures is of fundamental interest in science and engineering. Here, we introduce a tunable, non-Hermitian, nonlinear microwave dimer designed to precisely implement phase-non-reciprocal hopping dynamics between two spatially separated cavities at room temperature. Our system incorporates simple components such as three-dimensional microwave cavities, unidirectional amplifiers, digital attenuators, and a digital phase shifter. By dividing the energy transfer into forward and backward paths, our platform enables precise control over the amplitude and phase of the propagating signals in each direction. Through a combination of theoretical and numerical analysis, we model the dynamics of the system under different operating c

SUBMITTER: Salcedo-Gallo JS 

PROVIDER: S-EPMC12325717 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature