Beenakker, C. W. J. and Schomerus, Henning (2004) Antibunched photons emitted by a quantum point contact out of equilibrium. Physical Review Letters, 93 (9). 096801. ISSN 1079-7114Full text not available from this repository.
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 VÃ�e/, when the initial energy range of a decaying electron is restricted. The condition for photon antibunching in a narrow frequency interval below eV/hbar reads SUM_n[Tn(1â��Tn)]2<2[SUM_n Tn(1â��Tn)]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.
|Journal or Publication Title:||Physical Review Letters|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Dr Henning Schomerus|
|Deposited On:||31 Oct 2007|
|Last Modified:||26 Jul 2012 18:16|
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