Phase 2: Quantum Building Blocks
You know what qubits are and what makes them special. Now let's learn how to control them. Quantum gates are to quantum computing what logic gates (AND, OR, NOT) are to classical computing — the building blocks of every quantum program.
Quantum Gates
Meet the X, H, Z, S, T, and CNOT gates. Learn what each one does to a qubit and why the Hadamard gate is the most important gate in quantum computing.
Explore →Quantum Circuits
Learn how quantum gates are chained together into circuits — the programs of quantum computing. Read and build your first quantum circuit diagram.
Explore →The Bloch Sphere
A qubit's state can be visualized as a point on a 3D sphere. The Bloch sphere is the single most useful mental model for understanding what quantum gates actually do.
Explore →