Antibunched Photons Emitted by a Quantum Point Contact out of Equilibrium

C. W. J. Beenakker and H. Schomerus
Phys. Rev. Lett. 93, 096801 – Published 23 August 2004

Abstract

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×e/, when the initial energy range of a decaying electron is restricted. The condition for photon antibunching in a narrow frequency interval below eV/ reads [nTn(1Tn)]2<2n[Tn(1Tn)]2, with Tn an eigenvalue of the transmission matrix. This condition is satisfied in a quantum point contact, where only a single Tn differs from 0 or 1. The photon statistics is then a superposition of binomial distributions.

  • Figure
  • Received 2 May 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.096801

©2004 American Physical Society

Authors & Affiliations

C. W. J. Beenakker1 and H. Schomerus2

  • 1Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands
  • 2Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 93, Iss. 9 — 27 August 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×