1. Department of Physics, Shandong University, Jinan 250100, China;2. Department of Physics and Center of Stongly CorrelatedMaterials Research, Seoul National University, Seoul 151-742, Korea
Abstract:
The persistent current and transmission of two connected Aharonov-Bohm rings coupled to external leads are solved analytically. The conditions on which we may observe persistent current, zero or perfect transmission as well as Fano resonance are studied.