Antibunched photons emitted by a quantum point contact out of equilibrium

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dc.creatorBeenakker, C. W. J.
dc.creatorSchomerus, H.
dc.date2004-05-03
dc.date2004-07-09
dc.date.accessioned2026-07-07T02:57:57Z
dc.date.available2026-07-07T02:57:57Z
dc.descriptionMotivated 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, when the initial energy range of a decaying electron is restricted. The condition for photon antibunching in a narrow frequency interval below V is derived in terms of the eigenvalues T_n of the transmission matrix. This condition is satisfied in a quantum point contact, where only a single T_n differs from 0 or 1. The photon statistics is then a superposition of binomial distributions.
dc.description4 pages including 1 figure (to appear in PRL); [v2] added the antibunching condition for arbitrary shape of the response function
dc.identifierhttps://arxiv.org/abs/cond-mat/0405018
dc.identifierhttp://arxiv.org/abs/cond-mat/0405018
dc.identifierPhys.Rev.Lett. 93, 096801 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.096801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23876
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleAntibunched photons emitted by a quantum point contact out of equilibrium
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