  We study low--temperature non Gaussian thermal fluctuations of a system of
classical particles around a (hypothetical) crystalline ground state. These
thermal fluctuations are described by the behaviour of a system of long range
interacting charged dipoles at high--temperature and high--density. For the
case of uniformly bounded fluctuations, the low--temperature linked cluster
expansion describing the contribution to the free energy is derived and
analysed. Finally some nonpertubative results on the existence and independence
of boundary conditions of the Gibbs states for the associated dipole systems
are obtained.
