Feynman graphs and renormalization in quantum diffusion

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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.
Contribution to the proceedings of the conference in honour of Wolfhart Zimmermann's 80th birthday, Ringberg Castle, February 3-6, 2008. LaTeX, 16 pages with 6 figures

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Mathematical Physics, 60J65; 81T18; 82C10; 82C44

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http://salesiana.dossiersoluciones.com/handle/123456789/163861

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0806.4751
 http://arxiv.org/abs/0806.4751

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arXiv