quantum gate directory
A field guide to quantum gates.
Definitions, matrices, properties and SDK names for the gates of quantum computing, from the Paulis to hardware natives.
Gates by family
Grouped by family. Within a row, the first three columns are the $X$, $Y$ and $Z$ flavours of a gate. The small number in each card is the qubit count, and the one on the right is the number of parameters.
Paulis & basics
roots
rotations
rotationscontrolled
controlled
controlledmulti-qubit
swap family
hardware natives
interactions
qudits
circuit-level
Groups
Subgroups of the unitary group $\mathsf{U}(n)$ worth knowing by name. The map shows how they nest and overlap, with one example gate per region. Click a region or a chip to read about the group.
SDK support
Each gate page names the gate in every framework that has it. The support matrix shows all gates against all frameworks at once.
Missing a gate, or spotted a mistake? Open an issue or edit the page on GitHub; every page links to its source.
Everything here is machine-readable too: all gates as JSON, one file per gate under /api/gates/, and the groups. Each record has the symbol and notations in LaTeX, the matrix as expressions in the gate's parameters, and the basic facts.