Lancaster EPrints

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

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 1079-7114

Full text not available from this repository.

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/hbar reads SUM_n[Tn(1�Tn)]2<2[SUM_n Tn(1�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.

Item Type: Article
Journal or Publication Title: Physical Review Letters
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 664
Deposited By: Dr Henning Schomerus
Deposited On: 31 Oct 2007
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 18:16
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/664

Actions (login required)

View Item