SWAP operation

Fully qualified name: Std.Intrinsic.SWAP

operation SWAP(qubit1 : Qubit, qubit2 : Qubit) : Unit is Adj + Ctl

Summary

Applies the SWAP gate to a pair of qubits.

Input

qubit1

First qubit to be swapped.

qubit2

Second qubit to be swapped.

Remarks

$$ \begin{align} \operatorname{SWAP} \mathrel{:=} \begin{bmatrix} 1 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}, \end{align} $$

where rows and columns are ordered as in the quantum concepts guide.

Equivalent to:

CNOT(qubit1, qubit2);
CNOT(qubit2, qubit1);
CNOT(qubit1, qubit2);