Thermal Hyper-Conductivity: radiative energy transport in hyperbolic   media
  We develop a theoretical description of radiative thermal conductivity in hyperbolic metamaterials. We demonstrate a dramatic enhancement of the radiative thermal transport due to the super-singularity of the photonic density of states in hyperbolic media, leading to the radiative heat conductivity which can be comparable to the non-radiative contribution. 
J. Liu and E. Narimanov
physics.optics