Daan Janssen 🏳️🌈
@daanwjanssen.bsky.social
Dutch mathematical physics postdoc in York, UK - working on mathematical foundations of quantum field theory and relativistic quantum information
Scientist by day, gay mess by night.
daanwjanssen.nl
Scientist by day, gay mess by night.
daanwjanssen.nl
Our new paper is out on the ArXiv!
arxiv.org/abs/2508.20939
Using electromagnetism as example, we describe how boundaries in gauge theories give rise to edge modes and quantum reference frames for boundary/large gauge transformations.
#paperalert #mathsky #physics #science
arxiv.org/abs/2508.20939
Using electromagnetism as example, we describe how boundaries in gauge theories give rise to edge modes and quantum reference frames for boundary/large gauge transformations.
#paperalert #mathsky #physics #science
August 29, 2025 at 7:33 AM
Our new paper is out on the ArXiv!
arxiv.org/abs/2508.20939
Using electromagnetism as example, we describe how boundaries in gauge theories give rise to edge modes and quantum reference frames for boundary/large gauge transformations.
#paperalert #mathsky #physics #science
arxiv.org/abs/2508.20939
Using electromagnetism as example, we describe how boundaries in gauge theories give rise to edge modes and quantum reference frames for boundary/large gauge transformations.
#paperalert #mathsky #physics #science
Last week, a group of 75 young researchers from all over the world came to York for the EMS-IAMP Spring School: Symmetry and Measurement in Quantum Field Theory. It was an absolute pleasure to organize this event.
April 14, 2025 at 2:16 PM
Last week, a group of 75 young researchers from all over the world came to York for the EMS-IAMP Spring School: Symmetry and Measurement in Quantum Field Theory. It was an absolute pleasure to organize this event.
On a train back to York and suddenly there’s snow everywhere ☃️
November 19, 2024 at 12:28 PM
On a train back to York and suddenly there’s snow everywhere ☃️
Definitely need to plan my next visit to @kcl.ac.uk on a sunny day for an even better view
November 18, 2024 at 5:27 PM
Definitely need to plan my next visit to @kcl.ac.uk on a sunny day for an even better view
Happy to announce our Spring School on Symmetry and Measurement in Quantum Field Theory, taking place in York this April.
Speakers include Chris Fewster, Doreen Fraser, Kasia Rejzner and Michele Schiavina. More information can be found on our website.
sites.google.com/york.ac.uk/s...
Speakers include Chris Fewster, Doreen Fraser, Kasia Rejzner and Michele Schiavina. More information can be found on our website.
sites.google.com/york.ac.uk/s...
November 14, 2024 at 11:15 AM
Happy to announce our Spring School on Symmetry and Measurement in Quantum Field Theory, taking place in York this April.
Speakers include Chris Fewster, Doreen Fraser, Kasia Rejzner and Michele Schiavina. More information can be found on our website.
sites.google.com/york.ac.uk/s...
Speakers include Chris Fewster, Doreen Fraser, Kasia Rejzner and Michele Schiavina. More information can be found on our website.
sites.google.com/york.ac.uk/s...
After having successfully defended my PhD thesis on semi-classical gravity at the university of Leipzig, I am looking forward to starting a postdoc at the University of York. Here I will work on measurement theory for quasi-local observables in quantum field theory and gravity.
October 19, 2023 at 10:06 AM
After having successfully defended my PhD thesis on semi-classical gravity at the university of Leipzig, I am looking forward to starting a postdoc at the University of York. Here I will work on measurement theory for quasi-local observables in quantum field theory and gravity.