Tim Langen @timlangen.bsky.social · 11/09/2026🚀 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 152
Tim Langen @timlangen.bsky.social · 24/08/2026Now published in @apsphysics.aps.org 's Reviews of Modern Physics: journals.aps.org/rmp/abstract... Schindewolf et al., Rev. Mod. Phys. 98, 031002 (2026)journals.aps.orgColloquium: Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physicsRecent advances in molecular cooling have enabled the realization of strongly dipolar molecular Bose-Einstein condensates. Such systems provide a unique platform for investigating new states of matter... 040
Tim Langen @timlangen.bsky.social · 07/08/2026How 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), ... 260
Tim Langen @timlangen.bsky.social · 30/06/2026How 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! 181
Tim Langen @timlangen.bsky.social · 18/06/2026A 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 140
Tim Langen @timlangen.bsky.social · 29/05/2026Now published: www.sciencedirect.com/science/arti... #coldmolecules #lasercooling #python 030
Tim Langen @timlangen.bsky.social · 17/12/2025Polar 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 ... 150
Tim Langen @timlangen.bsky.social · 11/12/2025Notably, 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 161
Tim Langen @timlangen.bsky.social · 09/12/2025Freude, 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. 190
Tim Langen @timlangen.bsky.social · 05/12/2025In 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...). 170
Tim Langen @timlangen.bsky.social · 03/12/2025Glad 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. 2132
Tim Langen @timlangen.bsky.social · 21/10/2025You 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! 240
Tim Langen @timlangen.bsky.social · 04/09/2025🚀 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 090
Tim Langen @timlangen.bsky.social · 30/06/2025Recently 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 150
Tim Langen @timlangen.bsky.social · 30/06/2025A 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! 060
Tim Langen @timlangen.bsky.social · 27/06/2025Fantastic 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! 090
Tim Langen @timlangen.bsky.social · 20/06/2025My 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. 170
Tim Langen @timlangen.bsky.social · 17/06/2025Barium 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. 120
Tim Langen @timlangen.bsky.social · 09/04/2025Ich habe kürzlich zu zwei Artikeln im neuen Sammelband "Physik: Erkenntnisse und Perspektiven" der Deutsche Physikalische Gesellschaft beigetragen. Darin fassen über 200 Physikerinnen und Physiker gemeinsam viele faszinierenden Aspekte der modernen #Physik zusammen. 120
Tim Langen @timlangen.bsky.social · 06/04/2025I recently had the honor of delivering my official inaugural lecture as a professor at @tuwien.at. It was a fantastic opportunity to share my group’s research in #quantum science and technology and connect with colleagues, students, and friends. I'm excited for what lies ahead! 1100
Tim Langen @timlangen.bsky.social · 04/04/2025New crystal morphologies for #dipolar quantum matter Dipolar atoms and molecules naturally self-assemble into droplet crystals, but did you know these #droplets can further transition into flawless monolayer crystals when interactions become strong enough? See here: arxiv.org/abs/2504.02682 160
Tim Langen @timlangen.bsky.social · 28/01/2025Two levels are great for qubits, but molecules can take it to the next level—currently 112 of them, to be exact. We've controlled this complexity to realize laser cooling of previously intractable 137BaF molecules, preparing them for sensitive tests of the Standard Model. arxiv.org/abs/2501.16095 1110
Tim Langen @timlangen.bsky.social · 22/01/2025Less is more: how to optimize the laser light for the laser cooling of complex molecules. arxiv.org/abs/2501.10725 First new preprint of 2025! #coldmolecules #quantum #lessismore #serrodynes 1110
Tim Langen @timlangen.bsky.social · 14/01/2025Enjoying a morning walk to teach my lecture at TU Wien's Master’s program in #Quantum Information Science and Technology. No, this is not the lecture hall - but it's only a short walk away. Join us next semester! For details, see here: informatics.tuwien.ac.at/master/quant... #fuTUrefit 150
Tim Langen @timlangen.bsky.social · 07/01/2025Together with Tanya Zelevinsky, Sebastian Will and Tijs Karman we are organizing a summer workshop on Cold #Molecules for Fundamental Physics and Many-Body #Quantum Science at Aspen Center For Physics. Join us to learn about and contribute to the latest developments in this exciting field! 251
Reposted by Tim LangenGraeme Smith @graemesmith.bsky.social · 09/10/2023Great resource for finding quantum people here! 0173
Tim Langen @timlangen.bsky.social · 08/09/2024Last week I attended the #CCMI2024 conference organized ISTAustria by Misha Lemeshko and Katrin Erath-Dulitz. Now Misha has made a video about it ... www.youtube.com/watch?v=T7kP... #science #physics #chemistry #coldmoleculesyoutube.comAußerirdisches Leben, Quanteninterferenz von Menschen, Tests des Standardmodells (und Vieles mehr)YouTube video by Prof. Lemeshko 020
Tim Langen @timlangen.bsky.social · 09/08/2024A very pleasant surprise: My final lecture course held at @unistuttgart.bsky.social last summer term has been awarded with a teaching award for the best elective course in #physics. Great to receive this #award the second time in a row! #quantum | #teaching | #wequantum 191
Tim Langen @timlangen.bsky.social · 24/07/2024Had a great time at University of Cambridge for the ICAP satellite conference on Cold Atoms and #Molecules for Fundamental Physics. manybody.phy.cam.ac.uk/ICAPSatellite Thanks to Tiffany Harte and Ulrich Schneider for a fabulous workshop! 000
Tim Langen @timlangen.bsky.social · 24/07/2024New preprint with colleagues from Barcelona and Nijmegen, providing insights into self-bound #molecular #droplets in the strongly dipolar regime! arxiv.org/abs/2407.09391 Will #quantum Monte Carlo simulations play a similar role for molecular quantum gases as eGPE did for magnetic atoms? 130
Tim Langen @timlangen.bsky.social · 04/06/2024New paper: Bring on the rare molecular isotopologues! For atoms, laser cooling is frequently used to cool different isotopes, or even collect rare isotopes. In our latest paper, we demonstrate such selective cooling for molecules for the first time! arxiv.org/abs/2406.01569 250
Tim Langen @timlangen.bsky.social · 16/05/2024The big BaF chill: heavy barium monofluoride molecules are getting cold! See our latest preprint for a new approach to implement #laser #cooling for this and other complex molecular species. #coldmolecules #quantum arxiv.org/abs/2405.09427 120
Tim Langen @timlangen.bsky.social · 29/04/2024It was a pleasure to represent TU Wien and the #Atominstitut at the inauguration of the new #COSINUS experiment at Gran Sasso National Lab. Great achievement by Karoline Schaeffner, Florian Reindl and their collaboration - exciting #darkmatter science ahead for them! lnkd.in/gawMeeXa 010
Tim Langen @timlangen.bsky.social · 14/02/2024Directors Stefanie Barz and Fedor Jelezko opening #IQSTSymposium2024, celebrating 10 years of interdisciplinary #quantum research in Baden-Württemberg. IQST | Uni Stuttgart | Uni Ulm | MPI-FKF | Carl-Zeiss-Stiftung | Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg | THE LÄND 131
Tim Langen @timlangen.bsky.social · 11/01/2024I have recently joined TU Wien as a professor and head of the research division on Cold #Molecules and #Quantum Technologies. We have several openings from undergrad to PostDoc level in beautiful Vienna! Visit us at: www.coldmolecules.eu Image: mRGB_stock.adobe.com 010
Tim Langen @timlangen.bsky.social · 15/12/2023New paper in @PhysRevA with the last missing pieces of the puzzle for efficient laser cooling of barium monofluoride molecules: journals.aps.org/pra/abstract... #quantum #coldmolecules 010
Reposted by Tim LangenHumboldt-Stiftung @humboldt-foundation.de · 22/11/2023Welcome to Stuttgart! 👋🌍 #AvHNet Our network meeting brings together around 200 researchers from 49 countries @unistuttgart.bsky.social – for three days of intensive scientific and personal exchange. www.humboldt-foundation.de/en/explore/n...humboldt-foundation.deAround 200 researchers from 49 countries to attend network meeting in StuttgartFellows of the Alexander von Humboldt Foundation to meet at the University of Stuttgart from 22 to 24 November 062
Tim Langen @timlangen.bsky.social · 20/11/2023Recordings of my lecture course on #dipolar physics from the #LesHouches Cold Atoms School 2023 on #Ultracold #Molecules are now available online: videos.univ-grenoble-alpes.fr/video/28021-... videos.univ-grenoble-alpes.fr/video/28043-... videos.univ-grenoble-alpes.fr/video/28059-... 140