deltakit.circuit.gates.CX

class deltakit.circuit.gates.CX(control: UT | T, target: VT | T, *, tag: str | None = None)

Bases: ControlledGate[Qubit[T] | SweepBit | MeasurementRecord, Qubit[T]]

The Z-controlled X gate. First qubit is the control, second qubit is the target. The first qubit can be replaced by a measurement record. Applies an X gate to the target if the control is in the |1> state.

Notes

Negates the amplitude of the |1,-> state.

Stabilizer Generators:

X_ -> +XX

Z_ -> +Z_

_X -> +_X

_Z -> +ZZ

Unitary Matrix:

\[\begin{split}\begin{pmatrix} 1 & 0 & 0 & 0 \\ 0 & 0 & 0 & 1 \\ 0 & 0 & 1 & 0 \\ 0 & 1 & 0 & 0 \end{pmatrix}\end{split}\]

Methods

CX.from_consecutive	Yield an class instance for each pair in a flattened sequence of data.
CX.stim_targets	Get the stim gate targets which define this operation.
CX.transform_qubits	Transform this gates's qubits according to the id mapping.