Learning paths
Where do you want quantum to take you?
Pick the goal that sounds like you. Each path is an ordered route through the lessons, experiments, challenges and research tools already on this site — with milestones, so you always know what is next and when you are done. Your progress counts across paths: a lesson finished on one is finished on all of them.
Quantum, explained properly
“I keep hearing about quantum and I want to actually understand it.”
- Explain superposition without saying "it is both at once"
- Say what entanglement does and — just as important — what it cannot do
- Describe what a quantum computer physically is, and why it is hard to build
4 milestones · 14 steps
Quantum software engineer
“I want to write quantum programs and run them on real hardware.”
- Build, debug and optimise multi-qubit circuits
- Implement Grover's search and the quantum Fourier transform from gates
- Read and write OpenQASM, and move circuits between tools
5 milestones · 24 steps
Quantum mechanics, the course companion
“I am taking quantum mechanics and I want to see what the equations mean.”
- Connect each textbook equation to a behaviour you have watched happen
- Solve bound-state problems with intuition for the answer before the algebra
- Reason about uncertainty as a Fourier trade-off, not a measurement flaw
4 milestones · 19 steps
Quantum hardware and error correction
“I want to work on building quantum computers that actually work.”
- Characterise noise: decoherence, readout error, and how to measure them
- Explain the surface code and why a threshold exists
- Train and compare decoders on your own noise model
4 milestones · 14 steps
Quantum-safe security
“I work in security and I need to know what quantum means for cryptography.”
- Explain exactly which cryptography Shor's algorithm breaks, and which it does not
- Put Grover's effect on symmetric keys in the right proportion
- Describe how quantum key distribution detects an eavesdropper, and its practical limits
3 milestones · 11 steps
Quantum machine learning and optimisation
“I work in AI or operations research and want to know where quantum really helps.”
- Build and train variational circuits, and diagnose barren plateaus
- Formulate an optimisation problem for QAOA
- Benchmark a quantum model honestly against a classical baseline
3 milestones · 12 steps
Not sure which one?
Start with Quantum, explained properly. Every other path assumes some of it, and nothing you finish there is wasted when you switch.