# XGate¶

class XGate(label=None)[소스]

기반 클래스: qiskit.circuit.gate.Gate

The single-qubit Pauli-X gate ($$\sigma_x$$).

Matrix Representation:

$\begin{split}X = \begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix}\end{split}$

Circuit symbol:

     ┌───┐
q_0: ┤ X ├
└───┘


Equivalent to a $$\pi$$ radian rotation about the X axis.

참고

A global phase difference exists between the definitions of $$RX(\pi)$$ and $$X$$.

$\begin{split}RX(\pi) = \begin{pmatrix} 0 & -i \\ -i & 0 \end{pmatrix} = -i X\end{split}$

The gate is equivalent to a classical bit flip.

$\begin{split}|0\rangle \rightarrow |1\rangle \\ |1\rangle \rightarrow |0\rangle\end{split}$

Create new X gate.

Methods Defined Here

 control Return a (multi-)controlled-X gate. inverse Return inverted X gate (itself).

Attributes

decompositions

Get the decompositions of the instruction from the SessionEquivalenceLibrary.

definition

Return definition in terms of other basic gates.

duration

Get the duration.

label

Return instruction label

반환 형식

str

params

return instruction params.

unit

Get the time unit of duration.