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arXiv · 1106.4921

Infrared behavior of interacting bosons at zero temperature

N. Dupuis
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Abstract

We review the infrared behavior of interacting bosons at zero temperature. After a brief discussion of the Bogoliubov approximation and the breakdown of perturbation theory due to infrared divergences, we show how the non-perturbative renormalization group enables to obtain the exact infrared behavior of the correlation functions.

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N. Dupuis. 2011-06-24. Infrared behavior of interacting bosons at zero temperature. https://doi.org/10.1142/s021798491102667x

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