Rudolf A Roemer

422 posts

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Rudolf A Roemer

Rudolf A Roemer

@DisQS

Theoretical condensed matter physicist, Diplom/Berlin, PhD/Salt Lake City, Habilitation/Chemnitz, DSc/Warwick, FuRongProf/Xiangtan, Fellow/#IOP+CYAS Cergy-Paris

University of Warwick Joined Mayıs 2014
126 Following166 Followers
Rudolf A Roemer
Rudolf A Roemer@DisQS·
"Putting machine learning to the test in a quantum many-body system", Y. Gao, A. Rodriguez, R. A. Römer, appeared on arxiv.org/abs/2602.01981 today, learning multifractality in the bulk of the spectrum.
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
Submitted just before my August hols driving along the NC500: arxiv.org/abs/2508.01846: theory and experiment agree on our new idea to use compactly-localized states as possible quantum storage devices.
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
We at Physica E just accepted a great review article by Trambly de Laissardiere et al on "Electronic structure and transport in materials with flat bands: 2D materials and quasicrystals" doi.org/10.1016/j.phys…. Learn about Moire patterns from some of the original discoverers.
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
Have you ever wondered how to generate large-angle convergent-beam electron diffraction patterns via conditional generative adversarial networks? If you have, see our new doi.org/10.1016/j.ultr…. If not, it makes nice pictures as you can see.
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
So You Want to Be a Physicist? Watch this from Sabine Hossenfelder: youtube.com/watch?v=WR8-Q_…. A largely correct view of what it takes to become a working physicist.
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
A PhD position for a UK student (UK fees) has become available for Oct 2025 entry. The scientific topic is largely free for us to choose from. If you are interested, please let me know, apply at warwick.ac.uk/fac/sci/physic… and do so asap.
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Rudolf A Roemer retweeted
The London Economic
The London Economic@LondonEconomic·
What has the ECHR ever done for us?
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
Now "in open-access print" as Shaw, S., & Römer, R. A. (2025). Real-space renormalisation approach to the Chalker–Coddington model revisited: Improved statistics. Physica E: Low-Dimensional Systems and Nanostructures, 165, 116073. doi.org/10.1016/j.phys…
Rudolf A Roemer@DisQS

High-precision RG estimates for the critical exponent of the Chalker-Coddington model at 2.51+/-0.11 now within 3% of results from direct approaches, as shown in arxiv.org/abs/2404.00660.

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Rudolf A Roemer
Rudolf A Roemer@DisQS·
@skdh I understand you used to be a physicist and now are an influencer. Fine. Doesn't mean you are right in your criticism nor that it would help. The map expresses our, admittedly thus far futile, attempts at making sense of the universe. "Don't just criticise, do better".
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Sabine Hossenfelder
Sabine Hossenfelder@skdh·
all that's wrong with theoretical physics in one simple graph
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Rudolf A Roemer
Rudolf A Roemer@DisQS·
Some work during the holidays.
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