Quantum Foundations

From classical bits to qubits, superposition, measurement and the Bloch sphere.

5 lessons17 exercises56 min225 XP

1. 01Why quantum computing?What kind of problems a quantum computer is for, and what it is not.10 min · 45 XP
2. 02Bits, qubits and notationKets, amplitudes and how a register of qubits is written down.12 min · 45 XP
3. 03Superposition and the Hadamard gateWhere superpositions come from, what phase is, and why H twice does nothing.12 min · 45 XP
4. 04MeasurementWhat a measurement does to a state, why shots matter and how to read a histogram.10 min · 45 XP
5. 05The Bloch sphereOne qubit as a point on a sphere: angles, rotations and what entanglement does to the picture.12 min · 45 XP