CUI: Advanced Imaging of Matter

Second-Order Microscopic Nonlinear Optical Susceptibility in a Centrosymmetric Material: Application to Imaging Valence Electron Motion Nonlinear x-ray diffraction is used to isolate the valence electron density in silicon, demonstrating a powerful imaging technique useful across a range of complex materials.

📣New publication on "Application to Imaging Valence Electron Motion" by i.a. CUI member Daria Gorelova @uni-hamburg.de journals.aps.org/prx/abstract...

🔬✨ 𝐓𝐨𝐝𝐚𝐲 𝐰𝐞 𝐜𝐞𝐥𝐞𝐛𝐫𝐚𝐭𝐞 𝐈𝐧𝐭𝐞𝐫𝐧𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐖𝐨𝐦𝐞𝐧 𝐚𝐧𝐝 𝐆𝐢𝐫𝐥𝐬 𝐢𝐧 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 𝐃𝐚𝐲!🔬✨With the upcoming #GirlsDay and our programs to advance women in science, we’re committed to supporting female scientists at @uni-hamburg.de and our cluster.

👉https://uhh.de/4lbae

#WomenInScience #STEM #Equality #GirlsInScience

In situ X-ray Synchrotron Studies Reveal the Nucleation and Topotactic Transformation of Iron Sulfide Nanosheets Iron sulfides (FexSy), including greigite (Fe3S4), are key materials in geological processes and technological applications. However, in the context of colloidal synthesis, the mechanism by which thes...

📣New publication on "In situ X‑ray Synchrotron Studies Reveal the Nucleation and Topotactic Transformation of Iron Sulfide Nanosheets" by CUI member Dorota Koziej et al. @uni-hamburg.de @pubs.acs.org pubs.acs.org/doi/10.1021/...

Laser lab: UHH/Esfandaria

📣 𝐎𝐩𝐞𝐧 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧!!
Research Associate - "Ultracold and ultrafast: Quantum simulation with dense Rydberg assemblies" in the working group of Prof. Dr. Markus Drescher Universität Hamburg

𝐑𝐞𝐚𝐝 𝐦𝐨𝐫𝐞
www.uni-hamburg.de/stellenangeb...

#phdjobs #ResearchOpportunity #QuantumPhysics #AcademicJobs

📣New publication on "Realizing an atomic quantum interference device in a rotating-box potential" by CUI member L. Mathey @physrevlett.bsky.social @uni-hamburg.de journals.aps.org/prresearch/a...

#HowtoDFG Neues Jahr – neue Ideen? Auch 2026 sind der DFG Anträge zu vielversprechenden Ansätzen oder Projekten jederzeit willkommen! Ob schon jemand an dem Thema arbeitet oder sich ggf. Möglichkeiten der Zusammenarbeit bieten, lässt sich in unserer Datenbank #GEPRIS recherchieren: 👉 sohub.io/cqje

Nichtlineare Kristallographie an Diamant Das Bild zeigt die Elektronenumverteilung in einer Diamant-Einheitszelle, wie sie mit nichtlinearer Kristallographie abgebildet wird. Die gelben Punkte markieren die Positionen der Kohlenstoffkerne, während die farbigen Flächen die Intensität der Valenzelektronenreaktion von schwach (dunkel) bis stark (hell) darstellen. Die nichtlineare Kristallographie nutzt den Prozess der röntgenoptischen Wellenmischung, um Valenzelektronen anzuregen und ihre räumliche Verschiebung kohärent über das resultierende nichtlineare Signal zu untersuchen. Dieses Demonstrationsexperiment legt die Grundlage, um zukünftig mit Röntgenwellenmischmethoden neue Materialeigenschaften zu erforschen. © Xenia Brockmüller, Fridtjof Kerker, Christina Bömer and Dietrich Krebs (DESY)

✨ Happy New Year!! ✨
As we step into the new year, we look forward to another chapter of exciting research, collaboration, and discovery in 2026! @europeanxfel.bsky.social @uni-hamburg.de #DESY @mpsdhamburg.bsky.social

90-degree twist creates tunable quantum simulators

90-𝐝𝐞𝐠𝐫𝐞𝐞 𝐭𝐰𝐢𝐬𝐭 𝐜𝐫𝐞𝐚𝐭𝐞𝐬 𝐭𝐮𝐧𝐚𝐛𝐥𝐞 𝐪𝐮𝐚𝐧𝐭𝐮𝐦 𝐬𝐢𝐦𝐮𝐥𝐚𝐭𝐨𝐫𝐬
by CUI member Angel Rubio et al. @physrevlett.bsky.social @uni-hamburg.de @mpsdhamburg.bsky.social
www.cui-advanced.uni-hamburg.de/en/research/...

📣New publication on "Modulation transfer spectroscopy and isotope shifts of the 1S0→3P1 transition of ytterbium" @physrevlett.bsky.social by CUI member Peter Schauss et al. @uni-hamburg.de #UniversityofVirginia journals.aps.org/pra/abstract...

#sciencejobs | CUI: Advanced Imaging of Matter 📢 𝐌𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐉𝐨𝐛 𝐎𝐩𝐞𝐧𝐢𝐧𝐠𝐬 𝐚𝐭 𝐭𝐡𝐞 𝐂𝐥𝐮𝐬𝐭𝐞𝐫 𝐨𝐟 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞 𝐂𝐔𝐈! 🟦 PhD position in the project "Ultracold and ultrafast: Quantum simulation with dense Rydberg assemblies" in the working group of Prof. Dr. M...

Don´t miss this and more job opening in our cluster! www.linkedin.com/feed/update/...

Proteins in a crowd: European XFEL looks inside cells

📣New publication on "Proteins in a crowd: European XFEL looks inside cells" by i.a. CUI member F. Lehmkühler uhh.de/bfq9m @europeanxfel.bsky.social @stockholm-uni.bsky.social #DESY @uni-hamburg.de

UHH/Esfandiari

📢 𝐌𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐉𝐨𝐛 𝐎𝐩𝐞𝐧𝐢𝐧𝐠𝐬 𝐚𝐭 𝐭𝐡𝐞 𝐂𝐥𝐮𝐬𝐭𝐞𝐫 𝐨𝐟 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞 𝐂𝐔𝐈!
👉See more www.linkedin.com/feed/update/... #AcademicChatter @uni-hamburg.de #PhDJobs
#AcademicTwitter @

A quantum corral (bottom panel) was built from 91 silver atoms to create a quantum state with four antinodes. A magnetic atom was positioned on the leftmost antinode. The red-brown color in the scanning tunnelling spectroscopy image (center panel) indicates a high probability that the Yu-Shiba-Rusinov quasiparticle is located on the rightmost antinode. The researchers were also able to demonstrate the same effect through simulations using a tight binding model (top panel). Photo: Jens Wiebe

📣New publication on "Non-local detection of coherent Yu–Shiba–Rusinov quantum projections" by CUI members J. Wiebe and T. Posske et al. www.nature.com/articles/s41... @uni-hamburg.de @illinoispress.bsky.social

Publikationen 2025

📣New publication on "Colossal Effect of Nanopore Surface Ionic Charge on the Dynamics of Confined Water" by CUI member Michael Fröba @uni-hamburg.de et al. 👉https://uhh.de/t62b0 @pubs.acs.org @illneutrons.bsky.social

📣New publication on 𝗖𝗼𝗹𝗼𝘀𝘀𝗮𝗹 𝗘𝗳𝗳𝗲𝗰𝘁 𝗼𝗳 𝗡𝗮𝗻𝗼𝗽𝗼𝗿𝗲 𝗦𝘂𝗿𝗳𝗮𝗰𝗲 𝗜𝗼𝗻𝗶𝗰 𝗖𝗵𝗮𝗿𝗴𝗲 𝗼𝗻 𝘁𝗵𝗲 𝗗𝘆𝗻𝗮𝗺𝗶𝗰𝘀 𝗼𝗳 𝗖𝗼𝗻𝗳𝗶𝗻𝗲𝗱 𝗪𝗮𝘁𝗲𝗿 by CUI member Michael Fröba 👉 pubs.acs.org/doi/full/10.... @pubs.acs.org @uni-hamburg.de

Ausschreibung

📣Job alert! Research Associate for the Project “Large-scale entanglement in a cryogenic ytterbium tweezer array" AG Schauss @uni-hamburg.de 👉https://uhh.de/ztfpb

Congratulations to our CUI members!!!

Two-dimensional quantum materials act as cavities

📣New publication "Two-dimensional quantum materials act as cavities" 👉https://uhh.de/c3e9t @natphys.nature.com @mpsdhamburg.bsky.social @columbiauniversity.bsky.social ky.social @uni-hamburg.de

Exciting research and team effort with i.a. CUI member Andrea Cavalleri!

📣New publication and team effort with i.a. CUI member Andrea Cavalleri on "A new type of light-controlled non-volatile memory" #DESY #MPSDS @sciencenews.bsky.social @oxfordphysics.bsky.social @uni-hamburg.de #ferroicmaterials www.science.org/doi/10.1126/...

©Johan Jarnestad/The Royal Swedish Academy of Sciences

👏Congratulations on The Nobel Prize in Physics 2025!

John Clarke, Michel H. Devoret and John M. Martinis have won the prize on their experiments on a chip revealed quantum physics in action! @nobelprize.bsky.social

Ausschreibung | CUI: Advanced Imaging of Matter 📣𝐉𝐨𝐛 𝐚𝐥𝐞𝐫𝐭! 𝐎𝐩𝐞𝐧 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬 𝐢𝐧 𝐨𝐮𝐫 𝐜𝐥𝐮𝐬𝐭𝐞𝐫!  ➡️ PhD position in the project "X-ray studies of catalytic interfaces in heterostructures" in the working group of Dr. Cecilia Zito.   👉 Further informati...

📣Job alert!

See all current open positions in our cluster here: www.linkedin.com/feed/update/...

@daadworldwide.bsky.social #phdjobs

Nature, with permission

🔬 GenAI - fake or real microscope images? Read more in a Nature Nanotechnology paper by i.a. CUI member Wolfgang Parak 👉https://www.cui-advanced.uni-hamburg.de/en/research/wissenschaftsnews/25-09-30-ki-in-nanoscience.html

❓How should we verify scientific images in the AI era?
@natcomms.nature.com

Exciting!

Phase retrieval from simulation

📣New publication: "Energy–time ptychography for one-dimensional phase retrieval" by CUI member L. Lohse et al.
👉https://uhh.de/tfip5
@optica.org @uni-hamburg.de @esrf.fr

📚Book release by one of our Mildred Dresselhaus Awardees Prof. Elspeth Garman "Mathematics for Bioscience" #WomenInScience @ox.ac.uk #MildredDresselhausGuestProfessorship

Ausschreibung

📣 𝐉𝐨𝐛 𝐚𝐥𝐞𝐫𝐭 - 𝐨𝐩𝐞𝐧 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬!

Don´t miss your chance for a great opportunity to work in our cluster.🌟 #PhDPosition #PostdocJobs #ResearchAssociate
👉 uhh.de/3x968
👉 uhh.de/5afrv
👉 uhh.de/4vsbu

👏Team effort on new insights into collective quantum behaviour 👉https://journals.aps.org/prl/abstract/10.1103/r2hf-9qn9 @uni-goettingen.de @uni-hamburg.de #DESY @physrevlett.bsky.social @uni-wuerzburg.de

Exploring Superfluidity with Quantum Gases

👏 Congratulations Dr. Cesar Cabrera Cordova!!!

𝐄𝐑𝐂 𝐒𝐭𝐚𝐫𝐭𝐢𝐧𝐠 𝐆𝐫𝐚𝐧𝐭 𝐟𝐨𝐫 @uni-hamburg.de 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫
Dr. César Cabrera Córdova, an experimental physicist at the Universität Hamburg, has been awarded a prestigious Starting Grant from the Research Council @erc.europa.eu uhh.de/205jd

Observation of a bilayer superfluid with interlayer coherence - Nature Communications The authors report the implementation of a bilayer system of 2D ultracold Bose gases with controllable Josephson coupling. This allows characterisation of coupling-induced superfluid phases and their ...

📣New publication by CUI member L. Mathey et al. on "Observation of a bilayer superfluid with interlayer coherence" www.nature.com/articles/s41... @matheygroup.bsky.social @natcomms.nature.com