Tim Langen
@timlangen.bsky.social
Professor of quantum physics at TU Wien | Formerly @JILAscience & @unistuttgart. Fellow of @yacadeuro & @IQSTpress, editorial board at @NJPhysics, funding by @ERC_research.
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!
arxiv.org/abs/2510.16203
As a bonus example: how to (or maybe not to) laser cool radioactive radium monofluoride molecules!
October 21, 2025 at 1:30 AM
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!
arxiv.org/abs/2510.16203
As a bonus example: how to (or maybe not to) laser cool radioactive radium monofluoride molecules!
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
@tuwien.at | @fwf-at.bsky.social | #quantum
June 30, 2025 at 2:33 PM
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
@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!
June 30, 2025 at 8:43 AM
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!
June 27, 2025 at 2:35 PM
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!
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.
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.
June 20, 2025 at 8:16 PM
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.
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
arxiv.org/pdf/2506.10940
arxiv.org/abs/2506.12972
#quantum | @tuwien.at
June 17, 2025 at 6:01 AM
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
arxiv.org/pdf/2506.10940
arxiv.org/abs/2506.12972
#quantum | @tuwien.at
Ich 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.
April 9, 2025 at 6:20 PM
Ich 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.
I 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!
I'm excited for what lies ahead!
April 6, 2025 at 7:56 AM
I 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!
I'm excited for what lies ahead!
New 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
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
April 4, 2025 at 4:06 AM
New 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
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
Two 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
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
January 28, 2025 at 5:12 AM
Two 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
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
Less 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
arxiv.org/abs/2501.10725
First new preprint of 2025!
#coldmolecules #quantum #lessismore #serrodynes
January 22, 2025 at 5:02 AM
Less 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
arxiv.org/abs/2501.10725
First new preprint of 2025!
#coldmolecules #quantum #lessismore #serrodynes
Enjoying 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
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
January 14, 2025 at 4:58 PM
Enjoying 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
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
Together 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!
Join us to learn about and contribute to the latest developments in this exciting field!
January 7, 2025 at 6:27 PM
Together 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!
Join us to learn about and contribute to the latest developments in this exciting field!
A 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
Great to receive this #award the second time in a row!
#quantum | #teaching | #wequantum
August 9, 2024 at 2:53 PM
A 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
Great to receive this #award the second time in a row!
#quantum | #teaching | #wequantum
Had 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!
manybody.phy.cam.ac.uk/ICAPSatellite
Thanks to Tiffany Harte and Ulrich Schneider for a fabulous workshop!
July 24, 2024 at 9:08 PM
Had 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!
manybody.phy.cam.ac.uk/ICAPSatellite
Thanks to Tiffany Harte and Ulrich Schneider for a fabulous workshop!
New 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?
arxiv.org/abs/2407.09391
Will #quantum Monte Carlo simulations play a similar role for molecular quantum gases as eGPE did for magnetic atoms?
July 24, 2024 at 9:05 PM
New 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?
arxiv.org/abs/2407.09391
Will #quantum Monte Carlo simulations play a similar role for molecular quantum gases as eGPE did for magnetic atoms?
Also check out the talk by lead author Felix Kogel at #DAMOP2024 on Wednesday morning in session "F08: Laser Cooling of Molecules". There's also a poster in Thursday"s evening poster session! #quantum #coldmolecules
June 4, 2024 at 5:35 AM
Also check out the talk by lead author Felix Kogel at #DAMOP2024 on Wednesday morning in session "F08: Laser Cooling of Molecules". There's also a poster in Thursday"s evening poster session! #quantum #coldmolecules
New 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
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
June 4, 2024 at 5:35 AM
New 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
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
The 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
arxiv.org/abs/2405.09427
May 16, 2024 at 5:13 AM
The 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
arxiv.org/abs/2405.09427
It 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
Great achievement by Karoline Schaeffner, Florian Reindl and their collaboration - exciting #darkmatter science ahead for them!
lnkd.in/gawMeeXa
April 29, 2024 at 8:01 PM
It 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
Great achievement by Karoline Schaeffner, Florian Reindl and their collaboration - exciting #darkmatter science ahead for them!
lnkd.in/gawMeeXa
Directors 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
IQST | Uni Stuttgart | Uni Ulm | MPI-FKF | Carl-Zeiss-Stiftung | Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg | THE LÄND
February 14, 2024 at 8:42 AM
Directors 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
IQST | Uni Stuttgart | Uni Ulm | MPI-FKF | Carl-Zeiss-Stiftung | Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg | THE LÄND
I 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
We have several openings from undergrad to PostDoc level in beautiful Vienna!
Visit us at: www.coldmolecules.eu
Image: mRGB_stock.adobe.com
January 11, 2024 at 12:41 PM
I 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
We have several openings from undergrad to PostDoc level in beautiful Vienna!
Visit us at: www.coldmolecules.eu
Image: mRGB_stock.adobe.com
New 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
journals.aps.org/pra/abstract...
#quantum #coldmolecules
December 15, 2023 at 5:46 AM
New 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
journals.aps.org/pra/abstract...
#quantum #coldmolecules
Recordings 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-...
videos.univ-grenoble-alpes.fr/video/28021-...
videos.univ-grenoble-alpes.fr/video/28043-...
videos.univ-grenoble-alpes.fr/video/28059-...
November 20, 2023 at 4:22 PM
Recordings 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-...
videos.univ-grenoble-alpes.fr/video/28021-...
videos.univ-grenoble-alpes.fr/video/28043-...
videos.univ-grenoble-alpes.fr/video/28059-...