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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 Löw115. 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.

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