Abstract
These notes for the NATO ASI conference in Microlocal analysis and spectral theory consist in the analysis of the links between estimating the splitting between the two first eigenvalues for the Schrödinger operator and the proof of infrared estimates for quantities attached to Gaussian type measures. They are mainly based on the “old” contributions of Dyson, Fröhlich, Glimm, Jaffe, Lieb, Simon, Spencer (in the seventie’s) in connection with more recent contributions of Pastur, Khoruzhenko, Barbulyak, Kondratev which treat in general more sophisticated models. We shall show how the recent semi-classical analysis permits sometimes to state more precise results.
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Helffer, B. (1997). Splitting in Large Dimension and Infrared Estimates. In: Rodino, L. (eds) Microlocal Analysis and Spectral Theory. NATO ASI Series, vol 490. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5626-4_10
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DOI: https://doi.org/10.1007/978-94-011-5626-4_10
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