Hannover 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.38: Poster
Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof
Quantum Memories suited for Space — •Luisa Esguerra Rodriguez1,2, Leon Meßner1,2, and Janik Wolters1,2 — 1Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institute of Optical Sensor Systems, Rutherfordstr. 2, 12489 Berlin, Germany. — 2TU Berlin, Institut für Optik und Atomare Physik, Hardenbergstr. 36, 10623 Berlin, Germany.
Quantum memories are a key element for the realization of quantum repeaters, essential for long-distance quantum communication. Especially for satellite-based quantum networks, alkali metal vapours constitute an excellent storage platform. Moreover, compound quantum systems combining said memories with single photon sources open the path for applications in quantum simulation and computing. The presented project explores a quantum memory implemented in a warm Cesium vapour cell using electromagnetically induced transparency (EIT) on the D1-line, similar to [1]. Light storage, first for attenuated laser pulses and later at the single photon limit, will be investigated. For the latter, single photons from a semiconductor quantum dot source, or a parametric down-conversion source will be used [2]-[4]. Furthermore, noise and efficiency limits of on-demand storage and retrieval will be studied, and optimized. Numerical simulations for optimal storage will be performed.
[1] J. Wolters et al., PRL 119, 060502 (2017)
[2] J. Wolters et al., arXiv:1908.00590v1 (2019)
[3] A. Ahlrichs, O. Benson, Appl. Phys. Lett. 108, 021111 (2016)
[4] T. Kroh et al., Sci Rep 9, 13728 (2019)