Authors: Abdelmalek Abdesselam Aldo Procacci Benedetto Scoppola
Publish Date: 2009/07/28
Volume: 136, Issue: 3, Pages: 405-452
Abstract
We prove clustering estimates for the truncated correlations ie cumulants of an unbounded spin system on the lattice We provide a unified treatment based on cluster expansion techniques of four different regimes large mass small interaction between sites large selfinteraction as well as the more delicate small selfinteraction or near massive Gaussian regime A clustering estimate in the latter regime is needed for the Bosonic case of the recent result obtained by Lukkarinen and Spohn on the rigorous control on kinetic scales of quantum fluids
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