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Recently I had to update Mathematica on my laptop and after having solved the challenges of the license manager that keeps looking different every time I have to use it, I learned that Mathematica 14 can now officially work with finite fields.

I had this neat calculation in my drawer and on the occasion of quantum mechanic's 100th birthday in 2025, I decided I submit a talk about it to the March meeting of the DPG, the German physical society, in Göttingen.

Once more, I am trying to better understand the Bohmian or pilot wave approach to quantum mechanics.

I came across this excerpt from a a christian home schooling book: which is of course funny in so many ways not at least as the whole process of "seeing" is electromagnetic at its very core and of course most people will have felt electricity at some point

You might have heard about recent efforts to inspect lots of "wide binaries", double stars that orbit each other at very large distances, which is one of the tasks the Gaia mission was built for, to determine if their dynamics follows Newtonian gravity or…

Here is a little puzzle I just came up with when in today's hep-th serving I found arXiv:2304.14351 [pdf, other] Operator growth and black hole formation Felix M.

I wrote a text as a comment on the episode of the Logbuch Netzpolitik podcast on the FTX debacle but could not post it to the comment section (because that appears to be disabled).

On the occasion of the announcement of the Nobel prize for Aspect, Clauser and Zeilinger for the experimental verification that quantum theory violates Bell's inequality, there seems to be a strong urge in popular explanations to state that this proves th…

The latest addition to our single chip computer zoo is Adafruit's Circuit Playground Express.

Over the last few days, I have been involved in some heated Twitter discussions around a possible reform of the voting system for the German parliament.

Since a few days, I am following the hype and play wordle.

I am an old man.

This is a follow-up to a Twitter discussion with John Baez that did not fit into the 260 character limit.

I really enjoyed last week's Zoom edition of the annual Strings conference.

You might have come across news about a search engine for faces: https://pimeyes.com/en/ .

Seit heute gibt es sie, die Corona-Warn-App, und ihr könnt (und solltet, siehe unten) sie herunterladen und installieren.

In the last few days, there was news that several big academic high performance computing centers had been hacked.

I write this post because I am genuinely interested in people's opinions.

Florian Freistetter has posed the challenge in his blog to write a generally accessible text on why nuclear fusion works.

The year 2019 is the International Year of the Periodic Table celebrating the 150th anniversary of Mendeleev's discovery.

Sorry, this one of the occasional posts about German politics and thus in German.

Further down the rabbit hole, over lunch I finished watching "Behind the Curve", a Netflix documentary on people believing the earth is a flat disk.

Visits to a Bohmian village Over all of my physics life, I have been under the local influence of some Gaul villages that have ideas about physics that are not 100% aligned with the main stream views: When I was a student in Hamburg, I was good friends wi…

Today, there was news about a huge database containing 773 million email address / password pairs became public.

I am a bit late for the party, but also wanted to share my two cents on the paper "Quantum theory cannot consistently describe the use of itself" by Frauchiger and Renner.