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arXiv · 0905.3443

Exact scattering eigenstates, many-body bound states, and nonequilibrium current of an open quantum dot system

Akinori Nishino·Takashi Imamura·Naomichi Hatano
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Abstract

We obtain an exact many-body scattering eigenstate in an open quantum dot system. The scattering state is not in the form of the Bethe eigenstate in the sense that the wave-number set of the incoming plane wave is not conserved during the scattering and many-body bound states appear. By using the scattering state, we study the average nonequilibrium current through the quantum dot under a finite bias voltage. The current-voltage characteristics that we obtained by taking the two-body bound state into account is qualitatively similar to several known results.

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Akinori Nishino, Takashi Imamura, Naomichi Hatano. 2009-10-30. Exact scattering eigenstates, many-body bound states, and nonequilibrium current of an open quantum dot system. https://doi.org/10.1103/physrevlett.102.146803

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