Exceptional points induced by unidirectional coupling in electronic circuits.

ABSTRACT: Exceptional points in non-Hermitian systems have attracted considerable attention due to their novel applications in several fields such as optics, electronics, and mechanics. Typically, exceptional points are constructed through gain and loss modulation or dissipative coupling within the framework of parity-time symmetry or anti-parity-time symmetry. Recent demonstration of unidirectional coupling in optical resonators to create exceptional points has offered an alternative approach. This study extends this concept to electronic circuits, examining exceptional points that emerge in unidirectionally coupled LC circuits. We show that this circuit undergoes resonance frequency splitting that exhibits either linear or square-root scaling with the strength of the applied perturbation. We furth

SUBMITTER: Zhao W 

PROVIDER: S-EPMC11568309 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature