Nonequilibrium Perturbative Formalism and Spectral Function for the Anderson Model

Mami Hamasaki

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arXiv · cond-mat/0506752

Nonequilibrium Perturbative Formalism and Spectral Function for the Anderson Model

Mami Hamasaki

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Abstract

The present work is based on the nonequilibrium perturbative formalism. There the self-energies are derived up to the forth-order. In consequence, it proves that the nonequilibrium (real-time) perturbative expansion can be connected with the Matsubara imaginary-time perturbative expansion for equilibrium. As the numerical results, the Kondo resonance still disappears for bias voltage exceeding the Kondo temperatures, as observed in experiments of two terminal systems.

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Mami Hamasaki. 2006-12-22. Nonequilibrium Perturbative Formalism and Spectral Function for the Anderson Model. https://arxiv.org/abs/cond-mat/0506752

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