Quantum Gates & Circuits
Single-qubit gates, unitaries, and the core building blocks of quantum computation.
What is a Quantum Gate?
Unitary Operators as Quantum Gates
Single-Qubit Gates (Conceptual Overview)
Pauli-X Gate
Pauli-Z Gate
Pauli-Y Gate
Hadamard Gate
Phase Gates (S and T)
Rotation Gates (Rx, Ry, Rz)
Universality of Single-Qubit Gates
CNOT Gate
Controlled Gates (CZ, CU)
SWAP Gate
Toffoli Gate (CCNOT)
What is a Quantum Circuit?
Circuit Diagrams & Notation
Circuit Depth & Width
Universal Gate Sets
Statevector Simulation
Measurement Sampling & Shots
Expectation Values from Circuits
Classical Post-Processing