Resonance in an Open Quantum Dot System with a Coulomb Interaction: a Bethe-Ansatz Approach

Abstract

An open quantum system consisting of a quantum dot with a Coulomb interaction and two leads without interactions is studied. The many-body scattering states are constructed with the Bethe-ansatz approach. The expectation value of the electric current is exactly calculated for the scattering states to observe resonance peaks due to many-body scattering.