Regensburg 2025 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 36: Materials and Devices for Quantum Technology II
HL 36.6: Talk
Wednesday, March 19, 2025, 16:15–16:30, H13
Towards the goal of reliably storing single-photons from a quantum dot — •Ioannis Caltzidis1, Patricia A. Kallert1, Chase Wallace2, Sean Keenan3, Nicolas Claro-Rodríguez1, Santiago Bermúdez-Feijóo1, Sonja Barkhofen1, Margherita Mazzera3, Eden Figueroa2, and Klaus D. Jöns1 — 1Institute for Photonic Quantum Systems (PhoQS), Center for Optoelectronics and Photonics Paderborn (CeOPP) and Department of Physics, Paderborn University, Germany — 2Quantum Memories Group, Heriot-Watt University, Edinburgh, Scotland, United Kingdom — 3Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, USA and Brookhaven National Laboratory, Upton, NY, USA
In quantum networks, precise single-photon arrival times are crucial for effective entanglement swapping protocols. Therefore, quantum memories are curcial to store photons until read out simultaneously and synchronously routed to further processing, e.g. Bell measurements. To operate a varm vapor memory in our laboratories we present initial results demonstrating our ability to generate short optical pulses in the desired frequency domain optimized for the atomic transitions of rubidium. We further probe the interaction of short pulses with the atomic medium in the presence or absence of different supsidiary light-fields. This series of experiments aims to probe the parameter space of our system with the goal of storing single photons fom quantum dots in a rubidium based EIT Memory.
Keywords: Otical-spectroscopy; Quantum-memory; Quantumdot