Free · Interactive · Always open
Quantum computing and information,
cooked from first principles.
A free companion to your quantum computing coursework — lecture notes, Nielsen & Chuang, and a few other resources, turned into something you can drag, run, and get quizzed on, instead of just read. This is a supplement, not a substitute: use it alongside your professor, your textbook, and your own notes, not instead of them. More about how to use it →
Contents
Part 0 — Prerequisite Quantum Mechanics (optional)
PlannedPart I — Foundations
7 of 7 live — completePart II — Open Quantum Systems
6 of 6 live — completePart III — Multipartite Entanglement
6 of 6 live — completePart IV — Photonics & Networks
Cooking in the kitchenPart V — Algorithms
10 of 10 live — completeThe cookbook
The chapters above teach things in order, building each idea on the last. The Cookbook is the opposite: a flat, searchable set of short recipes for exactly when you already know what you need, mid-problem-set, and just want the answer fast — "how do I build a Bell pair," "how do I check if a set of Kraus operators is complete," that kind of thing. No lecture-style buildup, no prerequisites, just the minimal code or circuit and a paragraph of why it works. Several recipes already exist scattered across the chapters that reference them (Ch. 5's tensor-product worked examples, Ch. 11's channel presets); a standalone, fully indexed Cookbook page pulling all of those into one searchable place is the next thing coming online.