Nonlinear Transport and Current Fluctuation in an AB Ring with a Quantum Dot
Junko Takahashi, Shuichi Tasaki
Abstract
Nonequilibrium steady states are explicitly constructed for a noninteracting electron model of an Aharonov-Bohm (AB) ring with a quantum dot (QD) with the aid of asymptotic fields. The Fano line shapes and AB oscillations are shown to strongly depend on the bias voltage. Current fluctuations are studied as well.
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