C.-A. Palma
capalma.bsky.social
C.-A. Palma
@capalma.bsky.social
PI, CTO, Mentor, Student, Professor of Physics and Physical Chemistry @unistra | @mpi_polymer | @TU_Muenchen | @HumboldtUni – @PalmaLab.bsky.social
Each org is responsible for implementing trade law according to DE export law. DE just “supports you in implementing foreign trade law” www.bafa.de/EN/Foreign_T... Working with BAFA/Foreign Off. toward ~asylum fellowships might be poss. & challenging, benefiting from political/social media leverage
Export Control and Academia
Professors, scientists and scientific staff at universities and non-university research institutions as well as representatives of these organizations working in the field of “export control and resea...
www.bafa.de
December 21, 2025 at 8:52 AM
Great sentiment, but challenging to implement: US export policies prevent researchers from working in the US and DE, as DE implements US export policies. Eg DE Foreign Office may not issue visas to researchers with ties to countries that are flagged by US export control, eg Iran, China, India, etc
December 20, 2025 at 10:33 AM
AI slop is terribly jarring—yet in this case it simply seems to rephrase the abstract in www.nature.com/articles/s41... or am I missing something?Theres much effort in routinely correcting paper misconceptions so maybe is OK to let anything pass which tries to engage an audience/not factually wrong?
Universality in quantum critical flow of charge and heat in ultraclean graphene - Nature Physics
Critical behaviour is expected in graphene when the carrier density is tuned to the Dirac point. Now, universality associated with the critical point is observed in electronic and thermal transport.
www.nature.com
December 12, 2025 at 8:45 AM
Could it be that the expectation that societies and govs will make difficult decisions on our behalf should change? Would it make sense at this point, to take difficult decisions upon ourselves, such as stop publishing in the Royal Society and watching FIFA?
December 7, 2025 at 6:43 PM
Or, forgive the double-pun, maybe it’s nontrivial (product space) after all 😆
November 8, 2025 at 12:29 PM
🎉🎉🎉🎉🎉
October 10, 2025 at 4:39 PM
+Professionalizing dissident scientist networks within scientific self-governance is essential for legitimizing similar career paths, as such last-resort has often been assumed to reflect unprofessional conduct rather than raise concerns re. institutionalized authoritarianism. Fingers crossed, U.S.
August 14, 2025 at 7:01 PM
Reposted by C.-A. Palma
*apparent height in a scanning tennisball microscope #STM #SurfaceScience #CondensedMatter xkcd!
April 25, 2025 at 9:03 PM
💯—Except that Research is not an Industry, is a resource. Without regulation, Journals do what anyone would do with a free resource: Profit. It’s time to stop holding journals/editors accountable whose jobs are to be profitable, and begin making policy makers accountable—whose jobs are to regulate.
March 27, 2025 at 1:01 PM
“Imagine if a book publisher demanded that authors write books for free and, instead of employing in-house editors, relied on other authors to edit those books, also for free. And not only that: The final product was then sold at prohibitively expensive prices”
March 27, 2025 at 12:51 PM
The corresp. 1969 piece is a brilliant account of experimental physics & highlights tenacity as a key quality for scientists iopscience.iop.org/article/10.1... (Though I ignore whether being laughed at by teachers is a rite of passage for all scientists or just those in sci. underdev. environments)
iopscience.iop.org
March 17, 2025 at 2:23 PM
Curious how this graph will look like in 4 years www.nature.com/articles/d41...
February 22, 2025 at 1:14 PM
My heartfelt condolences to family and friends
January 8, 2025 at 11:52 AM
What about experiments? We haven't been able to fund experiments in this direction, so progress is slow, but we hope to catch a break! If you liked this story stayed tuned for more spin-chain logic arxiv.org/abs/2407.20996 & (super)conductivity www.nature.com/articles/s41... stories next year! 7/7
December 12, 2024 at 2:18 PM
Bc single ligands in axial-coordination lattices can be manipulated by STM to pattern circuitry, our next step is to simulate fully-atomistic phonon circuitry together with the thermal memory and a logic gate. Logic operations will be holonomic arxiv.org/abs/2411.15038, a story for another time...
Geometric phase and holonomy in the space of 2-by-2 symmetric operators
We present a non-trivial metric tensor field on the space of 2-by-2 real-valued, symmetric matrices whose Levi-Civita connection renders frames of eigenvectors parallel. This results in fundamental re...
arxiv.org
December 12, 2024 at 2:18 PM