title: Two-color single-photon emission from InAs quantum dots: toward logic information management using quantum light.
abstract: In this work, we propose the use of the Hanbury-Brown and Twiss interferometric technique and a switchable two-color excitation method for evaluating the exciton and noncorrelated electron-hole dynamics associated with single photon emission from indium arsenide (InAs) self-assembled quantum dots (QDs). Using a microstate master equation model we demonstrate that our single QDs are described by nonlinear exciton dynamics. The simultaneous detection of two-color, single photon emission from InAs QDs using these nonlinear dynamics was used to design a NOT AND logic transference function. This computational functionality combines the advantages of working with light/photons as input/output device parameters (all-optical system) and that of a nanodevice (QD size of ∼ 20 nm) while also providing high optical sensitivity (ultralow optical power operational requirements). These system features represent an important and interesting step toward the development of new prototypes for the incoming quantum information technologies.
authors.affiliation: UMDO (Unidad Asociada al CSIC-IMM), Instituto de Ciencia de Materiales, Universidad de Valencia , P.O. Box 22085, 4607 Valencia, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Rivas
authors.forename: Guillermo
authors.initials: G
authors.lastname: Muñoz-Matutano
authors.forename: Josep
authors.initials: J
authors.lastname: Canet-Ferrer
authors.forename: Raúl
authors.initials: R
authors.lastname: García-Calzada
authors.forename: Giovanna
authors.initials: G
authors.lastname: Trevisi
authors.forename: Luca
authors.initials: L
authors.lastname: Seravalli
authors.forename: Paola
authors.initials: P
authors.lastname: Frigeri
authors.forename: Juan P
authors.initials: JP
authors.lastname: Martínez-Pastor