Brilliant
Complex Numbers
Complex numbers, amplitudes, phases, and the complex plane, as interactive problems. This is the notation a qubit state is written in.
Topic
Quantum States
3 courses · 3 tutorials
Courses
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QWorld
QBronze: Introduction to Quantum Computing and Quantum Programming (QWorld)
QWorld's free, self-study quantum computing workshop. Covers quantum states, quantum operators, quantum protocols, and quantum search using Python and Jupyter notebooks. No physics background required.
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Brilliant
Quantum Mechanics with Sabine
Brilliant / Sabine Hossenfelder
Quantum mechanics on Brilliant, with Sabine Hossenfelder. You work the simulations: states, superposition, and measurement.
Free Tutorials
- →
- beginner
- 20 min
Quantum Measurement Explained
How quantum measurement works: the Born rule, wavefunction collapse, measurement bases, and why measurement is irreversible in quantum computing.
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- beginner
- 15 min
Qubits vs Classical Bits: The Key Differences
A side-by-side comparison of classical bits and qubits: what makes a qubit fundamentally different, what it can and cannot do, and common misconceptions.
- →
- beginner
- 25 min
Bra-Ket Notation Explained
A practical guide to Dirac bra-ket notation as used in quantum computing: kets, bras, inner products, outer products, and how to read quantum circuit diagrams.