SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: QI Poster II (joint session QI/Q)
Q 43.21: Poster
Mittwoch, 8. März 2023, 16:30–19:00, Empore Lichthof
Status and perspective of a next generation, GHz bandwidth, on-demand single-photon source — •Felix Moumtsilis1, Max Mäusezahl1, Moritz Seltenreich1, Jan Reuter2,3, Hadiseh Alaeian4, Harald Kübler1, Matthias Müller2, Charles Stuart Adams5, Robert Löw1, and Tilman Pfau1 — 15. Physikalisches Institut, Universität Stuttgart, Germany — 2Forschungszentrum Jülich GmbH, PGI-8, Germany — 3Universität zu Köln, Germany — 4Departments of Electrical & Computer Engineering and Physics & Astronomy, Purdue University, USA — 5Department of Physics, Joint Quantum Centre (JQC), Durham University, UK
The ultimate challenge of coherent experiments in thermal vapors lies in the inevitable movement of atoms that must be overcome to profit from this highly scalable and miniturizable platform e.g. for high fidelity Rydberg logic gates. GHz interaction energies and nanosecond dephasing times in a thermal rubidium vapor demand equally fast coherent control of the atomic excitations, movement, and density.
Here we report on the current state, technical challenges, and the perspective of our next generation single photon source based on the Rydberg blockade. This involves an electronic pulse shaping system with sub-nanosecond jitter, two state-of-the-art 1010 nm pulsed fiber amplifiers, an ultra narrow yet high-contrast wavelength filtering of single photons, high NA focussing, and detection. Beyond our established micrometer thick wedged cells, we investigate novel glass cell geometries requiring a whole new set of manufacturing technologies.