Non-equilibrium 2-Channel Kondo model for quantum dots

Xiao-Gang Wen

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arXiv · cond-mat/9812431

Non-equilibrium 2-Channel Kondo model for quantum dots

Xiao-Gang Wen

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Abstract

We find that, under certain condition, a quantum dot with odd number of electron and coupled to two leads can be described by a non-equilibrium 2-channel Kondo model, when the two leads has a large voltage bias between them. The model is exactly soluble and can be mapped into a free fermion system, even in the presence of external magnetic field and other relevant perturbations. All (dynamical) correlation functions can be calculated. The fixed point of the 2-channel Kondo model is a non-equilibrium fixed point and is different from the usual 1-channel and 2-channel Kondo fixed point.

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Xiao-Gang Wen. 1999-04-04. Non-equilibrium 2-Channel Kondo model for quantum dots. https://arxiv.org/abs/cond-mat/9812431

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