  Heat flux exchanged between two hot bodies at subwavelength separation
distances can exceed the limit predicted by the blackbody theory. However this
super-Planckian transfer is restricted to these separation distances. Here we
demonstrate the possible existence of a super-Planckian transfer at arbitrary
large separation distances if the interacting bodies are connected in
near-field with weakly dissipating hyperbolic waveguides. This result opens the
way to long distance transport of near-field thermal energy.
