Information rate of a waveguide

  title={Information rate of a waveguide},
  author={Vittorio Giovannetti and Seth Lloyd and Lorenzo Maccone and Jeffrey H. Shapiro},
  journal={Physical Review A},
We calculate the communication capacity of a broadband electromagnetic waveguide as a function of its spatial dimensions and input power. We analyze the two cases in which either all the available modes or only a single directional mode are employed. The results are compared with those for the free-space bosonic channel. 

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