An introduction to real-time renormalization group

Details An introduction to real-time renormalization group An introduction to real-time renormalization group

1999-09-28

arxiv.org/abs/cond-mat/9909400v1

Lect.Notes Phys. 544 (2000) 137-166

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

30 pages, 7 figures

Scientific paper

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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