Duality and exact correlations for a model of heat conduction
  We study a model of heat conduction with stochastic diffusion of energy. We obtain a dual particle process which describes the evolution of all the correlation functions. An exact expression for the covariance of the energy exhibits long-range correlations in the presence of a current. We discuss the formal connection of this model with the simple symmetric exclusion process. 
C. Giardin\'a, J. Kurchan, F. Redig