Beyond Stefan-Boltzmann law: Thermal hyper-conductivity

@article{Narimanov2012BeyondSL,
  title={Beyond Stefan-Boltzmann law: Thermal hyper-conductivity},
  author={Evgenii Narimanov and Igor I. Smolyaninov},
  journal={2012 Conference on Lasers and Electro-Optics (CLEO)},
  year={2012},
  pages={1-2}
}
We demonstrate that the broadband divergence of the photonic density of states in hyperbolic metamaterials leads to giant increase in radiative heat transfer, beyond the limit set by the Stefan-Boltzmann law. The resulting radiative thermal “hyper-conductivity” may approach the heat conductivity via electrons and phonons in regular solids. 
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