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  • Quantum Active Matter Preprint on arXiv

    The paper of my colleague Sabrina Burgardt “Quantum-enabled active matter at the atomic scale” is now on arXiv: https://arxiv.org/abs/2606.24615 The paper explores how individual cesium atoms can become active particles inside an ultracold rubidium bath. I am a coauthor on the paper and contributed the coupled-channel calculations for the Rb-Cs collision rates, which enter the…

  • DAMOP 2026 Talk in Providence

    DAMOP 2026 Talk in Providence

    I gave a talk about our BIC experiment at this year’s DAMOP meeting in Providence, Rhode Island. For anyone interested, the slides can be found here.

  • BIC Paper now on the arXiv

    Our paper on engineering a bound state in the continuum in an ultracold quantum gas is now on arXiv: https://arxiv.org/abs/2602.07809 This project builds on our Floquet-Feshbach work and uses the interference between two tunable resonances to make a state that sits inside the continuum but doesn’t decay. Now it is off to peer review, let’s…

  • Arrived in the US

    Arrived in the US

    Yesterday, I flew to the US to join David Weld’s group at UCSB for the next six months. I’ll be working on his lithium-7 machine, which means switching from fermions to the more social bosons for a while. I’m excited, I’ve always been more of a fermion guy lol.

  • My First Paper Has Been Published in Science Advances

    My First Paper Has Been Published in Science Advances

    I am very happy to share that our paper “Floquet engineering of Feshbach resonances in ultracold gases” has been published in Science Advances. 🎉 This project has been with me for quite a while. It started during my Master’s thesis, where I worked on the idea of controlling Feshbach resonances with strong radio-frequency magnetic fields.…

  • Master’s Thesis on Floquet-Feshbach resonances

    In April 2023, I completed my master’s thesis with the title Towards probing and understanding radio-frequency induced Floquet-Feshbach resonances in ultracold lithium-6 gases at RPTU Kaiserslautern-Landau (former TU Kaiserslautern) in the group of Artur Widera. The work centers on theoretical studies how the interaction between two colliding lithium-6 atoms can be modified using strong oscillatory…

  • Replacing the Lithium Oven

    Replacing the Lithium Oven

    Recently, we had to replace the lithium oven on our experiment. The reason was simple: the atom number in the MOT had become suspiciously low, and the oven nozzle turned out to be clogged. So my colleague Felix Lang and I took the oven apart, removed the old heating tape and aluminum foil, and prepared…

  • Building Bitter Coils for Our Lithium Experiment

    Building Bitter Coils for Our Lithium Experiment

    For our lithium experiment, we needed a compact coil pair that can produce large magnetic fields while still being able to run continuously without turning itself into a toaster. A nice solution for this is a Bitter-type electromagnet, following the design idea from Sabulsky et al. Instead of winding copper wire, Bitter coils are built…

  • Master Thesis Digital Appendix

    Animation 01: Appearing of the radio-frequency induced Floquet-Feshbach resonances around the narrow I = 2 resonance. Animation 02: Interference between the (I = 0,N0 + 1) and (I = 2,N0) resonances.

  • My Cheap eBay CNC “Mill”

    My Cheap eBay CNC “Mill”

    A few years ago, I bought a small chinese CNC machine on eBay. It was a 3020, meaning about 30 × 20 cm of travel, with an 800 W water-cooled spindle, a variable frequency drive, and control through an old-school lpt port from a computer. Since the spindle was water-cooled, the setup even came with…