https://ion.nechita.net/ My personal webpage. 2026-08-13T09:48:30+02:00 Ion Nechita https://ion.nechita.net/ Jekyll © 2026 Ion Nechita /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-08-13T09:28:00+02:00 2026-08-13T09:28:00+02:00 https://ion.nechita.net/posts/new-hadamard-matrices/ Ion Nechita

Great news: humans have found a Hadamard matrix of order 668 This, and also other Hadamard matrices filling all the gaps up to 2000, have been announced by Levent Alpöge @alpoge . These examples have been obtained by Levent having some “weekend fun w @tehwalris, Saul Reynolds-Haertle, and of course claude:))”. Some colleagues seem genuinely annoyed by this new form of one-tweet mathematics:...

2025-03-17T00:00:00+01:00 2025-03-17T00:00:00+01:00 https://ion.nechita.net/posts/doctoral-course-tensors/ Ion Nechita

This year, I am teaching a doctoral course on Tensors in Quantum Information Theory. Here is the webpage for the lectures.

2025-03-01T00:00:00+01:00 2025-03-01T00:00:00+01:00 https://ion.nechita.net/posts/mpqcql2025-summer-school/ Ion Nechita

We are organizing a summer school during the period 23-28 May 2025, on the island of Porquerolles (France). This summer school aims at gathering mathematicians, computer scientists, and physicts interested in quantum learning and quantum computation. Several introductory lectures will be given by leading researchers in the field. The topics covered include: quantum computing and information, ...

2025-02-13T00:00:00+01:00 2025-02-13T00:00:00+01:00 https://ion.nechita.net/posts/lean-working-group/ Ion Nechita

UPDATE: we have a website! Together with my PhD student Aabhas Gulati, we’re excited to announce the launch of a new working group dedicated to exploring the formal proof assistant Lean. For a taste of why formalizing proofs is becoming so important, check out this video by Kevin Buzzard. Our Plan: Goal: Master the basics of Lean and eventually embark on a project to formalize a result fr...

2025-02-03T00:00:00+01:00 2025-02-03T00:00:00+01:00 https://ion.nechita.net/posts/icts-quantum-trajectories-lectures/ Ion Nechita

I am giving a series of three lectures at the Quantum Trajectories program at the ICTS in Bangalore, India. The lecture notes are available here.