Tim Langen

🚀 Turns out cold molecules are rocket science after all! In our new preprint we use PICLas, a software developed by our friends at University of Stuttgart for applications in aerospace engineering, to explore the complex dynamics inside cryogenic buffer-gas sources for molecules. lnkd.in/dxUXqMsh

🎓 A great result of Ekkehard Steinmacher's Master's thesis, jointly supervised and completed at @tuwien.at, @unistuttgart.bsky.social, and @fau.de, within the #EUMaster4HPC Master's program.

🚀 Turns out cold molecules are rocket science after all! In our new preprint we use PICLas, a software developed by our friends at University of Stuttgart for applications in aerospace engineering, to explore the complex dynamics inside cryogenic buffer-gas sources for molecules. lnkd.in/dxUXqMsh

Unlike previous approaches, this lets us capture many characteristic features of these sources, such as the heating of the buffer gas by freshly ablated molecules, across vastly different flow regimes in a single unified model.

How can molecules help us peek inside the nucleus? 🔬 For years, it has been known that molecules can serve as extraordinarily sensitive probes of fundamental physics. Following the remarkable progress in molecular searches for the electron's electric dipole moment (eEDM), ...

By combining new magneto-optical trapping (MOT) schemes, optimized optical trapping, and coherent control techniques, our proposal could improve the sensitivity by several orders of magnitude compared with today's best experiments. Great work led by Tatsam Garg.

How can molecules help us peek inside the nucleus? 🔬 For years, it has been known that molecules can serve as extraordinarily sensitive probes of fundamental physics. Following the remarkable progress in molecular searches for the electron's electric dipole moment (eEDM), ...

The catch? The most promising molecules have an exceptionally complex internal structure, making laser cooling, trapping, state preparation, and readout a formidable challenge.

How can molecules help us peek inside the nucleus? 🔬 For years, it has been known that molecules can serve as extraordinarily sensitive probes of fundamental physics. Following the remarkable progress in molecular searches for the electron's electric dipole moment (eEDM), ...

How much does the shape of dipolar interactions matter? ✨ New preprint! Using large-scale quantum Monte Carlo simulations, we show that the angular structure of microwave-induced interactions in polar #molecules reshapes the many-body phase diagram, not just the overall interaction strength!

Our numerically exact many-body simulations reach experimentally relevant system sizes, allowing us to distinguish equilibrium phases from metastable states created by the preparation protocol.

A great start to an exciting new research adventure! Last week, we officially launched QNNECT, our new Austrian Science Fund FWF-funded Special Research Area (SFB), with a kickoff event at @tuwien.at

Looking forward to the collaboration, the science, and the discoveries ahead. Thomas Pohl | Francesca Ferlaino | Julian Leonard | Hannes Bernien | Hannes Pichler | Annabelle Bohrdt | Andreas Nunnenkamp

A great start to an exciting new research adventure! Last week, we officially launched QNNECT, our new Austrian Science Fund FWF-funded Special Research Area (SFB), with a kickoff event at @tuwien.at

Polar molecules feature much stronger dipole moments than magnetic atoms—but what frontiers can we realistically explore with molecular Bose-Einstein condensates? 👉 arxiv.org/abs/2512.14511 We review this open question and the exciting possibilities in the field, from few- to many-body physics ...

... in our latest work together with colleagues from @columbiauniversity.bsky.social (S. Will, I. Stevenson), @mit.edu (J. Hertkorn), Radboud University (T. Karman), @univparissaclay.bsky.social/@cnrs.fr (G. Quéméner), CUHK (Dajun Wang) and @tuwien.at (T. Pohl, A. Schindewolf, P. Groß, M. Ciardi)

Notably, this makes it a double-double of 🇪🇺 #ERC grants for the Atominstitut this year — 🏅Andreas Schindewolf and 🏅Uroš Delić received an #ERCStG, while 🏅Philipp Haslinger and 🏅I received an #ERCCoG — and a double-triple for the #Physics Department at @tuwien.at

(with 🏅 Andrej Pustogow's #ERCCoG and 🏅 Gerben Oling's #ERCStG). And all of this comes on top of the #ERCAdv awarded earlier this year to 🏅 Karsten Held! Congratulations again to everyone 🎉!

Freude, schöner Götterfunken! 🇪🇺 I’m thrilled to share that my research group will soon be supported by an ERC Consolidator Grant from the @ERC — my third ERC grant! 🎉 In this project, we will be working towards precision measurements of parity violation using cold #molecules.

👉 More details can be found in @tuwien.at's article by @florianaigner.at: www.tuwien.at/tu-wien/aktu... #quantum #ERCCoG | Vienna Center for Quantum Science and Technology | Quantum Science Austria

In June, I participated in an exciting workshop on #Ultracold Molecules, organized by @michaltomza.bsky.social and Simon Cornish at the University of Warsaw. The recordings of the talks are now available on the Youtube channel of the Centre for AMO Physics (🔗 www.youtube.com/@CAMOP_UW/vi...).

Glad to share the news of our newly funded Special Research Area (SFB) of the @fwf-at.bsky.social. QNNECT will be a collaborative project on neutral-atom hashtag#quantum systems with high connectivity — spanning Rydberg atoms, atoms in cavities, magnetic atoms, and polar molecules.

A great example of the new generation of quantum researchers in Austria 🇦🇹 (and nearby) coming together around a shared vision—with @abohrdt.bsky.social , Francesca Ferlaino, Hannes Pichler, Hannes Bernien, Julian Leonard, Andreas Nunnenkamp, Thomas Pohl, and a network of international collaborators

You got yourself complex #molecules to laser cool and want to find the best laser configuration for cooling? Use our #python package MoleCool: arxiv.org/abs/2510.16203 As a bonus example: how to (or maybe not to) laser cool radioactive radium monofluoride molecules!

Barium charge radii in molecules do the (odd-even) twist: High-resolution spectroscopy of barium monofluoride that benchmarks theory, reveals nuclear properties and prepares the molecules for more efficient laser cooling along the way.

Two new preprints with colleagues from @rug.nl, @uchicagopsd.bsky.social and @jhu.edu arxiv.org/pdf/2506.10940 arxiv.org/abs/2506.12972 #quantum | @tuwien.at

Recently had the pleasure of giving an invited talk at the ESNT Workshop on "Theoretical and experimental developments for symmetry-violating nuclear properties" at @cea.fr Saclay! @tuwien.at | @fwf-at.bsky.social | #quantum

My timelines are usually filled with pictures of either #quantum physics or mountains. What a unique opportunity to combine them both! Approaching @apsphysics.bsky.social's #DAMOP2025 meeting in Portland, flying in right over the crater rim of Mt. St. Helens, with Mt. Adams in the background.