Tim Langen

#quantum #BEC #UltracoldMolecules #molecules | VCQ Vienna Center for Quantum Science and Technology | Quantum Science Austria

Image credits: Nat. Phys. 19, 1579 (2023); PRX Quantum 6, 020358 (2025); PRA 108, 053321 (2023); PRR 4, 013235 (2022); PRL 135, 153401 (2025); Nature 631, 289 (2024).

... 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)

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 ...

🎓 This is maybe a good time to mention that we have a new interdisciplinary Master's program in Quantum Science and Technology at @tuwien.at that many of my colleagues and myself teach in and that is open for applications:

👉 lnkd.in/e6FRpdCp

(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 🎉!

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

Also available in English: www.tuwien.at/en/tu-wien/n...

Moleküle messen den Unterschied zwischen rechts und links Wie symmetrisch sind die Naturgesetze? Das ist eine der großen Fragen der Physik. Tim Langen hat eine neue Methode entwickelt, das zu untersuchen – dafür erhält er einen ERC Consolidator Grant.

👉 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

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.

YouTube video by Centre for AMO Physics at University of Warsaw Tim Langen "Precision measurements and many-body physics with cold molecules"

👉 Here's the link to my talk: www.youtube.com/watch?v=G-tw...

#quantum #coldmolecules | @tuwien.at | VCQ 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...).

More details in FWF's website: lnkd.in/e6QEcrUn

#QuantumScience | VCQ Vienna Center for Quantum Science and Technology | Quantum Science Austria | @tuwien.at n.at | @uniinnsbruck.bsky.social | @iqoqi.bsky.social | @oeaw.bsky.social | ISTAustria | @univie.ac.at | @lmumuenchen.bsky.social

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

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.

Simulations hint at new strongly correlated states of matter in ultracold polar molecules Bose-Einstein condensates (BECs) are fascinating states of matter that emerge when atoms or molecules are cooled to extremely low temperatures just slightly above absolute zero (0 K). In 2023, physici...

phys.org/news/2025-10...

LangenGroup - Overview Tim Langen's Cold Molecule and Quantum Technologies Lab at TU Wien, Austria - LangenGroup

All codes and examples are available on our GitHub page: github.com/LangenGroup

Great work led by Felix Kogel!

#quantum | #coldmolecules

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!

Now published back-to-back in @apsphysics.bsky.social's Phys. Rev. A:

journals.aps.org/pra/abstract...
journals.aps.org/pra/abstract...

Now published in Phys. Rev. Lett.

journals.aps.org/prl/abstract...

🚀 Great success! Three 🇪🇺 #ERC Starting Grants this year go to @tuwien.at — including one for Andreas Schindewolf from my group! 🎉

Proud moment for our team and a big congratulations to Andreas and all other awardees!

@erc.europa.eu | #VCQ | Quantum Science Austria | #quantum #ERCStartingGrant

Inspiring discussions on nuclear symmetry breaking, #PrecisionMeasurements, and how #ColdMolecules can help probe #PhysicsBeyondTheStandardModel. Grateful to the organizers for bringing together such an excellent group of researchers.

Talks are online here: 🔗 esnt.cea.fr/Phocea/Page/...

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

A new PhD graduate from the Cold Molecules group! Huge congratulations to Felix Kogel for successfully defending his PhD with the highest distinction! Felix's doctoral hat includes an interactive replica of the #lasercooling experiment for new types of #precisionmeasurements described in his thesis!

Fantastic workshop on Ultracold Molecules at Warsaw University, organized by Simon Cornish and @michaltomza.bsky.social! Greatly enjoyed joining as a speaker and panelist - amazing talks & discussions, and a real sense that #molecules are one of the most exciting areas of quantum science today!

Check out the invited session P02 "Advances in cooling atoms and molecules" for our latest work on the laser cooling of complex #molecules!

schedule.aps.org/damop/2025/e...

#pacificnorthwest #volcanoes

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.

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

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.

Laser-cooled $^{137}\mathrm{BaF}$ molecules for measuring nuclear-spin-dependent parity violation Many precision measurements with molecules require species that possess additional nuclear spin, but laser cooling such systems is challenging because of their complex hyperfine structure. This work d...

Now published in @apsphysics.bsky.social Phys. Rev. Research: journals.aps.org/prresearch/a...

Molecular laser cooling using serrodynes: implementation, characterization and prospects - IOPscienceSearch Molecular laser cooling using serrodynes: implementation, characterization and prospects, Kogel, Felix, Garg, Tatsam, Rockenhäuser, Marian, Morales-Ramírez, Sebastián A, Langen, Tim

Now published in NJP: iopscience.iop.org/article/10.1...