Anomalous fluctuations for a perturbed Hamiltonian system with exponential interactions
arXiv:1205.1879 · doi:10.1007/s00220-013-1860-5
Abstract
A one-dimensional Hamiltonian system with exponential interactions perturbed by a conservative noise is considered. It is proved that energy superdiffuses and upper and lower bounds describing this anomalous diffusion are obtained
to appear in Communications in Mathematical Physics