Objective A group III/V semiconductor quantum dot will be interfaced with an ensemble of ultracold alkali atoms (first group). This interface will allow to combine efficient single photon generation in quantum dots with the excellent properties of cold atom quantum memories to build a key element for future high-speed quantum networks. Semiconductor quantum dots have been developed into one of the best single-photon sources, providing single-photon generation on demand at a high rate and with high spectral purity. Independently, ultracold atoms have emerged as excellent quantum memories, providing single-photon storage with high efficiency and long lifetime. Using a new type of quantum dot that emits single photons at a wavelength compatible with rubidium atoms and a new broadband quantum memory scheme, we will directly interface these two systems for the first time. A single photon emitted from the quantum dot will be stored in the atomic ensemble and retrieved again on demand, realizing a key element of a quantum network. These achievement, which constitutes the primary goal of this project, wil form the basis for future experiments where the system will be used to create entanglement between two atomic ensembles and ultimately between the atoms and the quantum dot spin. These experiments will establish a new technology for quantum communication and distributed quantum computation, combining high bandwidth, high efficiency, and long storage time. Fields of science natural scienceschemical sciencesinorganic chemistryalkali metalsnatural sciencescomputer and information sciencescomputer securitycryptographynatural sciencesphysical sciencesatomic physicsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivitynatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2015-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Call for proposal H2020-MSCA-IF-2015 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator UNIVERSITAT BASEL Net EU contribution € 187 419,60 Address PETERSPLATZ 1 4051 Basel Switzerland See on map Region Schweiz/Suisse/Svizzera Nordwestschweiz Basel-Stadt Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 187 419,60
