Antibunched photons emitted by a quantum point contact out of equilibrium.

  title={Antibunched photons emitted by a quantum point contact out of equilibrium.},
  author={C. W. J. Beenakker and Henning Schomerus},
  journal={Physical review letters},
  volume={93 9},
Motivated by the experimental search for "GHz nonclassical light," we identify the conditions under which current fluctuations in a narrow constriction generate sub-Poissonian radiation. Antibunched electrons generically produce bunched photons, because the same photon mode can be populated by electrons decaying independently from a range of initial energies. Photon antibunching becomes possible at frequencies close to the applied voltage V x e/variant Planck's over 2pi, when the initial energy… 

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Phys Rev Lctt 86

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