Aims and scopes

The aim of this workshop is to put together several different approaches to heat transfer in two different kinds of nonconventional situations, namely, solid nanosystems and helium superfluid. In these situations, Fourier's law is not sufficient to describe the whole complexity of the observed phenomena, and one must use more general frameworks, starting from microscopic approaches based on some form of Boltzmann equation for heat carriers, or from a priori dynamical simulations, or from generalized heat transfer equations. The last perspective provides several links and parallelisms between the description of heat transport in both kinds of systems, which are deeply different from each other from a microscopic perspective. 

The main aspects to be examined are: 

a) the role and physical basis of nonlocal effects; 

b) different ways of dealing with boundary conditions; 

c) the influence of nonlinear effects, in turbulent helium superfluid or in highly inhomogeneous solid systems; 

d) several new aspects of microscopic approaches to heat transfer, as in phonon hydrodynamics, and turbulent superfluids.