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An introduction to real-time renormalization group

Herbert Schoeller
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Abstract

This article presents a tutorial introduction to a recently developed real-time renormalization group method. It describes nonequilibrium properties of discrete quantum systems coupled linearly to an environment. We illustrate the technique by a simple and exactly solvable model: A quantum dot consisting of a single non-degenerate level coupled to two reservoirs. The article is intended for advanced students. Besides elementary quantum mechanics and statistical mechanics, it requires only knowledge of second quantization and Wick's theorem.

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Herbert Schoeller. 1999-09-28. An introduction to real-time renormalization group. https://arxiv.org/abs/cond-mat/9909400

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