Mainz 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 81: Quantum Communication, Networks, Repeaters, & QKD III
Q 81.4: Talk
Friday, March 6, 2026, 15:15–15:30, P 10
Stand-alone mobile quantum memory system — •Martin Jutisz1, Alexander Erl2,3, Janik Wolters2,3, Mustafa Gündoğan1, and Markus Krutzik1,4 — 1Humboldt-Universität zu Berlin and CSMB Adlershof, Berlin, Germany — 2Technische Universität Berlin, Berlin, Germany — 3Deutsches Zentrum für Luft- und Raumfahrt, Berlin, Germany — 4Ferdinand-Braun-Institut (FBH), Berlin, Germany
Quantum memories (QMs) are pivotal to many areas of quantum information science, most notably quantum repeaters. Therefore, these devices must be capable of operating in non-laboratory environments, even in space. Warm-vapour QMs are especially appealing for this purpose because of their simplicity and ease of operation.
We will present the implementation and performance analysis of a portable, standalone warm vapour quantum memory system [1]. The memory operates with weak coherent pulses of less than one photon per pulse. We demonstrate the memory's long-term stability over a 28-hour period, including operation in a non-laboratory environment. We also report ongoing progress in miniaturising the memory platform and demonstrating storage of heralded single photons generated via spontaneous parametric down-conversion.
[1] M. Jutisz et al., Phys. Rev. Applied 23, 024045 (2025).
Keywords: Quantum Memory; Quantum Communication; Quantum Repeater