Pietro Caputo
Uniform 
Poincare inequalities for unbounded conservative spin 
systems: The non-interacting case
(59K, Latex2e)

ABSTRACT.  We prove 
a uniform Poincare inequality for 
non-interacting unbounded spin systems with 
a conservation law, when the single-site potential is a 
bounded perturbation of a convex function. 
The result is then applied to Ginzburg-Landau 
processes to show diffusive scaling of the associated spectral gap.