Objective Single photon sources are essential for applications of quantum optics. For optical quantum computing the process is probabilistic and so the larger the number of photons the less time required for success. Therefore, there has been a push to increase the brightness of single photons sources. This goal of this action is to develop a source of heralded single photons with a very high spectral brightness, based on four-wave mixing in an alkali-vapour contained in a hollow core photoniccrystal fibre. This will exploit the higher efficiency expected from using a hollow core fibre to boost the brightness of the single-photon source. Also, by using optical fibre technology, this photon source should be very simple to integrate into other systems. Once the photon pairs are generated, the major challenge of this system will be to split them from themselves, as well as removing the vast number of remaining pump photons. Since all three wavelengths of the light emerging from thefibre are very close to each other, and the beams are spatially overlapped, many common techniques (such as using interference filters and/or spatial filtering) will not work. However, we have identified a scheme using an atomic Faraday filter which will allow a beam splitter to be formed for the photon pairs, whilst simultaneously removing the pump photons. Fields of science natural scienceschemical sciencesinorganic chemistryalkali metalsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersnatural sciencesphysical sciencesquantum physicsquantum opticsnatural sciencesphysical sciencesopticsfibre opticsnatural 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-2017 - Individual Fellowships Call for proposal H2020-MSCA-IF-2017 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator UNIVERSITY OF STUTTGART Net EU contribution € 132 884,00 Address KEPLERSTRASSE 7 70174 Stuttgart Germany See on map Region Baden-Württemberg Stuttgart Stuttgart, Stadtkreis 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 € 132 884,00
