News
The grammar of the Ising model
The grammar, in the sense of a formal language, of the Ising model can be studied in classified. To be read in Proceedings of the Royal Society A 481, 20240579 (2025).
Positive moments forever?
Given a matrix, are all their moments positive? This question is sometimes decidable and other times undecidable. And, in other occasions, we don’t know (it is undecided). To be read in Linear Algebra and its Applications 722, 255 (2025).
Tobias Reinhart defended his PhD Thesis on March 2025
What a beautiful defense and work! The Thesis can be found here. Congratulations, Tobi!
Epistemic horizons in Synthese
A viewer from inside may be able to learn less than a viewer from the outside, even if the laws are deterministic (and if the view from outside is a chimera). Such epistemic horizons go half way toward reproducing quantum theory; they give rise to Spekkens’ knowledge balance principle. Our work was just published in Synthese 205, 136 (2025).
Border ranks of fancy decompositions in Quantum
Our work on border ranks of positive and invariant decompositions was published in Quantum 9, 1649 (2025)
The Aldous-Hoover Theorem in Categorical Probability
Work by Leihao Chen, Tobias Fritz, Tomáš Gonda, Andreas Klingler, Antonio Lorenzin on arXiv:2411.12840
Resource-theoretic hierarchy of contextuality for general probabilistic theories
Work by Lorenzo Catani, Thomas D. Galley, Tomáš Gonda on arxiv:2406.00717
Conceptual and formal groundwork for the study of resource dependence relations
Work by Yìlè Yīng, Tomáš Gonda and Robert Spekkens on arxiv:2407.00164
Epistemic Boundaries and Quantum Uncertainty: What Local Observers Can (Not) Predict
This work by Johannes Fankhauser hast just appeared in Quantum 8, 1518 (2024)
Dr Andreas Klingler
Andreas gave a clear and beautiful account of his (very technical) PhD work. Congratulations! And all the best for your Postdoc!
Visiting the Perimeter Institute
Tobias, Johannes and Gemma are visiting the wonderful Perimeter Institute and sharing our recent work on emulations of spin models and epistemic horizons. It is so inspiring to be here!
Emulations of spin models preserve all properties, are modular and allow for universality
We present a framework to study and construct emulations of spin models in arXiv:2407.13428
Tensors inspired us to study polynomial decompositions
Just published in Linear Algebra and its Applications 698, 537 (2024). This is one of DAL·LE’s renderings.
An epistemic horizon in a deterministic theory
The world from inside can look quite different from the world from outside, as we show in arXiv:2406.17581
An invitation to the framework for universality
To be found at arXiv:2406.16607. The image is DAL·LE’s rendering of the title.
Stefan Kremminger defended his Master Thesis on Quantum conditional independence
Congratulations, Stefan!