Erlangen 2018 – scientific programme
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A: Fachverband Atomphysik
A 25: Poster Session I
A 25.28: Poster
Tuesday, March 6, 2018, 16:15–18:15, Redoutensaal
Manipulating single photon propagation through alkali vapour cells — •Lea Kopf1, Hüseyin Vural2, Simone Luca Portalupi2, Julian Maisch2, Simon Kern2, Jonas Weber2, Michael Jetter2, Ilja Gerhardt3,4, Peter Michler2, and Robert Löw1 — 15. Physikalisches Institut and IQST, University of Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart, Germany — 2Institut für Halbleiteroptik und Funktionelle Grenzflächen, IQST and SCoPE, University of Stuttgart, Allmandring 3, D-70569 Stuttgart, Germany — 33. Physikalisches Institut and IQST, University of Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart, Germany — 4Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
A crucial component of future quantum network technologies are quantum memories, in which single photons are stored and read-out. Single photons generated in quantum dots provide on-demand emission and a high photon indistinguishability. The broadband capabilities and room temperature operation of quantum memory schemes in alkali vapour cells are a suitable storage medium. By tuning quantum dot photons to a 'transparency window' between the hyperfine lines we have realized a temperature dependent time delay. In a next step we want to employ an EIT/Autler-Townes scheme to achieve optical control on the single photon propagation. An important aspect for storing single photons is excellent control over the read/write pulses, optical pumping and the manufacturing of optimized vapour cells.