Lab. Kastler Brossel

Mark your calendars for the next #LKBseminar!
We're delighted to host Juan Pablo Paz, who will be discussing « Quantum information processing with squeezed multiplet».

📍 Collège de France - on 24 september 2025

👉 Explore our website for more details : www.lkb.fr/en/evenement...

Congratulations to physicist Christophe Salomon who has just won a 2025 #BalzanPrize!

This award is related to his work on atoms and ultra-precise measurement of time.

He will receive c.€800K, half of which must then be invested in research.

@lkblab.bsky.social @cnrs.fr

Computational field-resolved coherent chemical imaging Nature Communications - A vibrational spectral phase retrieval approach to broadband CARS spectroscopy is presented, therefore enabling supervised compressive CARS microspectroscopy for...

#NewPaper on the blend of computational microscopy with chemical imaging: enabling high-speed quantitative CARS imaging via a new compressive Raman framework.
Kudos @spzhao0724.bsky.social
A collaboration between @lkblab.bsky.social and @ukmlv.bsky.social from Washington Uni St.Louis rdcu.be/eCjLz

"100 Years of Quantum Physics. In the honor of Serge Haroche"

Quantip is supporting an international colloquium in Vietnam (October 6-9). The organizers will be pleased to welcome Quantip researchers and invite them to present a communication (or a poster).

➡️ vietnam.in2p3.fr/2025/Haroche...

🇫🇷 This year, France is hosting the 55th International Physics Olympiad!

The LKB had the pleasure of welcoming participants for a tour of our lab.

Many thanks to Serge Haroche and @jmcourty.bsky.social for their appearance on @franceinter.fr, and to Élisabeth Giacobino, for her opening speech.

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

✨At @sfp-physique.bsky.social 2025, quantum physics concepts came alive through dance and dialogue.

With:
• M. Cagnon Trouche ( @lpens-phys.bsky.social  )
• A. Chapuis ( @insp-lab.bsky.social ) 
• @leo-rc.bsky.social (LKB) 

📽️ Watch here :

🎉 Clôture de la journée du laboratoire à la Fondation des Etats-Unis ! 🎉

Ce mardi 8 juillet 2025 à la Cité internationale universitaire de Paris, notre laboratoire a organisé une journée dédiée à la physique quantique, avec des séminaires techniques et de vulgarisation.

👏 Our two papers on the benchmarking of non-Gaussian states are out ! Congrats to the team and to our collaborators in Olomouc!

▶️ PRL: journals.aps.org/prl/abstract...

▶️ Companion in PRA: journals.aps.org/pra/abstract...

@lkblab.bsky.social @agencerecherche.bsky.social @apsphysics.bsky.social

Almut Beige - Laboratoire Kastler Brossel

📅 Don't forget, tomorrow is the next #LKBseminar, with Almut Beige (@universityofleeds.bsky.social)
💬 "Increasing wave-particle duality"

📍 See you on 2 July at 11 am - room 2 - @collegedefrance.bsky.social –  11 place Marcelin Berthelot, 75005
More info:

🚀 Don't miss the upcoming #LKBseminar with Almut Beige (@universityofleeds.bsky.social)
Join us for a discussion on «Increasing wave-particle duality».

🗓️ 2 July 2025 - @collegedefrance.bsky.social – 75005

🔗More info: https://www.lkb.fr/en/evenement/almut-beige/

🇨🇦 Julien Laurat was at the SPIE Photonics for Quantum 2025 workshop in Waterloo, Canada!

📣 He delivered a Keynote on optical interconnects to scale quantum information architectures.

👏 Many thanks to the organizing team and the conference chairs, Michael Reimer and Nir Rotenberg !

Michael Tarbutt - Laboratoire Kastler Brossel

📅 Don't forget, tomorrow is the next #LKBseminar, with Michael Tarbutt ( @imperialcollegeldn.bsky.social )
💬 "Searching for new physics with ultracold molecules"

📍 See you on 18 June, at 11 am - @collegedefrance.bsky.social – 75005
More info:

Collaboration between the Exotic Ions team and the LKB mechanical service - Laboratoire Kastler Brossel

Collaboration between the Exotic Ions team and the LKB mechanical service ! 

🔗

L’hégémonie de l’anglais comme langue scientifique est-elle inéluctable ? Depuis les années 1980, le monde scientifique s’est mis à ne parler qu’anglais, sans vouloir reconnaître les dégâts que cela implique. Des mathématiciens proposent de renouer avec le français comme l…

Interview in Mediapart with Yvan Castin

👉

🚀 Don't miss the upcoming #LKBseminar with Michael Tarbutt (@imperialcollegeldn.bsky.social)
Join us for a discussion on «Searching for new physics with ultracold molecules».

🗓️ 18 June 2025 - @collegedefrance.bsky.social – 75005

🔗More info: https://www.lkb.fr/en/evenement/michael-tarbutt/

Mikael Rechtsman - Laboratoire Kastler Brossel

📅 Don't forget, tomorrow is the next #LKBseminar, with Mikael Rechtsman (Penn State University & Institut Néel @cnrsalpes.bsky.social)
💬 "Quantized nonlinear Thouless pumping"

📍 See you on 11 June, at 11 am - @collegedefrance.bsky.social
More info:

Qui se ressemble quantiquement, s’assemble étrangement CARTE BLANCHE. Alors que l’industrie publicitaire n’hésitera bientôt plus à vanter les inexistantes propriétés quantiques d’un camembert pour mieux le vendre, les deux scientifiques saluent, dans leur...

🔍 « Qui se ressemble quantiquement s’assemble… étrangement »

Grâce au contrôle optique, des physiciens du LKB explorent le comportement quantique des gaz.

👉Une avancée à lire dans @lemonde.fr : www.lemonde.fr/sciences/art...

@cnrs.fr @normalesup.bsky.social

#PhysiqueQuantique #Sciences

Observing anyonization of bosons in a quantum gas - Nature Emergent anyonic correlations via spin–charge separation are observed in a one-dimensional strongly interacting quantum gas, enabling the exploration of non-equilibrium anyonic phenomena in a highly c...

👉New article out now

A study published in Nature reports the first observation of emergent anyonic behavior in a 1D ultracold bosonic gas.

🔗 Read more: www.nature.com/articles/s41...

@collegedefrance.bsky.social

Check our new results!

🚀 Don't miss the upcoming #LKBseminar with Mikael Rechtsman (Penn State University & Institut Néel @cnrsalpes.bsky.social )
Join us for a discussion on «Quantized nonlinear Thouless pumping».

🗓️ 11 June 2025 - @collegedefrance.bsky.social
🔗More info: https://www.lkb.fr/en/evenement/mikael-rechtsman/

🌟 Post-Doc Opportunity in Quantum Computing! 🌟

Join us at @lkblab.bsky.social in Paris to explore photonic quantum computing. Apply by June 15th, 2025.

🔗 Job Announcement: www.lkb.fr/multimodequa...

#QuantumComputing #PostDoc #JobOpportunity

📚 New release!
Book: "Bose-Einstein Condensates – The Theory, from Foundations to Applications" by Yvan Castin, with a foreword by Claude Cohen-Tannoudji.

@cnrs.fr @normalesup.bsky.social @sorbonne-universite.fr @collegedefrance.bsky.social

Ignacio Cirac - Laboratoire Kastler Brossel

📅 Don't forget, tomorrow is the next #LKBseminar, with Ignacio Cirac ( @maxplanck.de)
💬 "Quantum Computing and Simulation in the presence of errors"

📍 See you on 21 May, at 2 p.m. - @collegedefrance.bsky.social   – 75005
More info:

Portail Emploi CNRS - Offre d'emploi - Assistant-e ingénieur-e en réalisation mécanique H/F L'assistant(e) ingénieur(e) en réalisation mécanique prendra en charge, à partir des dossiers de plans, la fabrication, l'ajustage et l'assemblage, le contrôle et les tests de pièces et d'ensembles mécaniques. L'agent sera également amené à réaliser de petites études en construction mécanique.

📢 Le laboratoire recrute un assistant ingénieur en réalisation mécanique

Il prendra en charge, à partir des dossiers de plans, la fabrication, l’ajustage et l’assemblage, le contrôle et les tests de pièces et d’ensembles mécaniques.

Pour consulter l'offre : emploi.cnrs.fr/Offres/MOBIN...

@cnrs.fr

🚀 Don't miss the upcoming #LKBseminar with Ignacio Cirac ( @maxplanck.de)
Join us for a discussion on « Quantum Computing and Simulation in the presence of errors».

🗓️ 21 May 2025 - @collegedefrance.bsky.social  – 75005

🔗More info: https://www.lkb.fr/en/evenement/ignacio-cirac/

🚀 Pushing the limits of superinductors with vertically‑stacked Josephson junctions

#Quantum #Superinductor #JosephsonJunctions #Nanofab #QuantumHardware

@lkblab.bsky.social - @lpens-phys.bsky.social - @cea.fr - @sorbonne-universite.fr - @alice-and-bob.bsky.social

🔬✨ Save the date!

Join us on Friday, May 16th at 11 AM for a seminar by Valentin Hermann on "Precision Spectroscopy with Tritium — Changes and Challenges" ( in collaboration with @vuamsterdam.bsky.social & @kit.edu ).

📍 Location: Jussieu, Room 23-13-210

🎉  Check out the latest paper from Tarik Yefsah’s group on Quantum Gas Microscopy of Fermions in the Continuum, just published in Physical Review Letters!

🔗 Article: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.134.183403
🔗 Viewpoint: https://physics.aps.org/articles/v18/89

Sebastian Hofferberth - Laboratoire Kastler Brossel

📅 Don't forget, tomorrow is the next #LKBseminar, with Sebastian Hofferberth (@unibonn.bsky.social)
💬 "Rydberg Quantum Optics with Ultracold Ytterbium"

📍 See you on 7 May, at 11 am - @collegedefrance.bsky.social  – 75005
More info:

How to observe a quantum wave packet in situ? - Laboratoire Kastler Brossel

🔬How to observe a quantum wave packet in situ?

Researchers (LKB & LCAR) have successfully observed the free expansion of a quantum wave packet of a single atom in continuous space.

Full article: