SAMOP 2023 – scientific programme
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QI: Fachverband Quanteninformation
QI 23: Poster II (joint session QI/Q)
QI 23.55: Poster
Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof
Compact and portable atomic vapor memory for single photon storage — •Alexander Erl1,2,3, Leon Meßner3,2, Martin Jutisz3, Luisa Esguerra2,1, Elizabeth Robertson2,1, Norman Vinzenz Ewald2, Elisa Da Ros3, Mustafa Gündoğan3, Markus Krutzik3,4, and Janik Wolters2,1 — 1Technische Universität Berlin, Institut für Optik und Atomare Physik, Berlin, Germany — 2Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Optische Sensorsysteme, Berlin, Germany — 3Humboldt-Universität zu Berlin, Institut für Physik, Berlin, Germany — 4Ferdinand-Braun-Institut, Institut für Höchstfrequenztechnik, Berlin, Germany
Quantum memories for single photons are a key component of quantum repeaters for sattelite-based quantum communication over long distances [1,2]. Memories on sattelites for feasible quantum repeater networks must be compact, maintainable and scalable. Reliable storage and retrieval of photons on demand would make a significant contribution to memory assisted quantum key distribution.
We present a compact, rack-mounted, stand-alone warm vapor quantum memory based on electromagnetically induced transparency (EIT) on the Cs D1 line at 895 nm [3]. This mobile setup realizes high fidelity light storage at single photon level with minimal readout noise level.
[1] M. Gündoğan et. al., npj Quantum Information 7, 128 (2021)
[2] N. Sangouard et. al., arXiv:0906.2699 (2009)
[3] L. Esguera, et al., arXiv:2203.06151 (2022)