Real-time renormalization group and charge fluctuations in quantum dots

Details Real-time renormalization group and charge fluctuations in quantum dots Real-time renormalization group and charge fluctuations in quantum dots

1999-08-27

arxiv.org/abs/cond-mat/9908404v2

Phys. Rev. Lett. 84, 3686 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.84.3686

We develop a perturbative renormalization-group method in real time to describe nonequilibrium properties of discrete quantum systems coupled linearly to an environment. We include energy broadening and dissipation and develop a cutoff-independent formalism. We present quantitatively reliable results for the nonlinear conductance in the mixed-valence and empty-orbital regime of the nonequilibrium Anderson impurity model with finite on-site Coulomb repulsion.

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