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arXiv · 1010.1576

Transport theory of coupled quantum dots based on auxiliary operator method

Jung Hyun Oh·D. Ahn·Vladimir Bubanja
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Abstract

We formulate the theory of electron transport through coupled-quantum dots by extending the auxiliary operator representation. By using the generating functional technique, we derive the exact expressions for currents, dot-occupation numbers and spin correlations, and examine them based on the non-equilibrium Green's function method under the non-crossing approximation (NCA). Our formulation generalizes the previous NCA approaches by allowing full occupation numbers with a finite Coulomb repulsion.

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Jung Hyun Oh, D. Ahn, Vladimir Bubanja. 2010-10-08. Transport theory of coupled quantum dots based on auxiliary operator method. https://doi.org/10.1103/physrevb.83.205302

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