Feynman graphs and renormalization in quantum diffusion

Details Feynman graphs and renormalization in quantum diffusion Feynman graphs and renormalization in quantum diffusion

2008-06-29

arxiv.org/abs/0806.4751v1

Physics

Mathematical Physics

Contribution to the proceedings of the conference in honour of Wolfhart Zimmermann's 80th birthday, Ringberg Castle, February

Scientific paper

We review our proof that in a scaling limit, the time evolution of a quantum
particle in a static random environment leads to a diffusion equation. In
particular, we discuss the role of Feynman graph expansions and of
renormalization.

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