Nonlinear Quantum Optics Group
Our group explores how we can create strong optical nonlinearity in a medium at light levels of individual photons. Such a quantum nonlinear medium mediates an effective interaction between single photons and thus opens the possibility of manipulating light at its most fundamental level. Our goal is to realize a system that enables full control over the quantum state of few photon light pulses.
Latest news
DPG news spread around the world1
In the UN’s "International Year of Quantum Science and Technology," Sebastian shared insights on quantum computing.
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Trip to Phantasialand2
Our research group had a fun and exciting trip to Phantasialand in Brühl!
Meet us at Pint of Science Bonn 20253
Join us on May 20th at Pint of Science in Bonn, where Theresa and Julia will introduce you to the fun world of Rydberg physics.
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Florian Giefer: New Master student4
Florian will stay with us as a Master student ✨
Our research

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Rubidium Rydberg Nonlinear Quantum Optics

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Ytterbium Rydberg Nonlinear Quantum Optics

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Fiber Cavity Optomechanics

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Hybrid quantum optics
Get in touch!
Prof. Dr. Sebastian Hofferberth
hofferberth@iap.uni-bonn.de
Tel.: +49 (0)228 733477
Contact the institute
Institut für Angewandte Physik
Wegelerstraße 8
Universität Bonn
53115 Bonn, Germany

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Links
- https://www.iap.uni-bonn.de/nqo/en/nqonews/dpg-news-spread-around-the-world
- https://www.iap.uni-bonn.de/nqo/en/nqonews/trip-to-phantasialand
- https://www.iap.uni-bonn.de/nqo/en/nqonews/meet-us-at-pint-of-science-bonn-2025
- https://www.iap.uni-bonn.de/nqo/en/nqonews/florian-giefer-new-master-student
- https://www.iap.uni-bonn.de/nqo/en/nqonews/latest-news
- https://www.iap.uni-bonn.de/nqo/en/research/rubidium-rydberg-nqo
- https://www.iap.uni-bonn.de/nqo/en/research/ytterbium-rydberg-nqo
- https://www.iap.uni-bonn.de/nqo/en/research/fiber-cavity-optomechanics
- https://www.iap.uni-bonn.de/nqo/en/research/hybrid-quantum-optics
- http://iap.uni-bonn.de