## January 29, 2024

### Axioms for the Category of Finite-Dimensional Hilbert Spaces and Linear Contractions

#### Posted by Tom Leinster

*Guest post by Matthew di Meglio*

Recently, my PhD supervisor Chris Heunen and I uploaded a preprint to arXiv giving an axiomatic characterisation of the category $\mathbf{FCon}$ of finite-dimensional Hilbert spaces and linear contractions. I thought it might be nice to explain here in a less formal setting the story of how this article came to be, including some of the motivation, ideas, and challenges.

## January 24, 2024

### Summer Research at the Topos Institute

#### Posted by John Baez

Are you a student wanting to get paid to work on category theory in Berkeley? Then you’ve got just one week left to apply! The application deadline for Research Associate positions at the Topos Institute is February 1st.

Details and instructions on how to apply are here: