RXGate#

class qiskit.circuit.library.RXGate(theta, label=None)[Quellcode]#

Bases: Gate

Single-qubit rotation about the X axis.

Can be applied to a QuantumCircuit with the rx() method.

Circuit symbol:

     ┌───────┐
q_0: ┤ Rx(ϴ) ├
     └───────┘

Matrix Representation:

\[ \begin{align}\begin{aligned}\newcommand{\th}{\frac{\theta}{2}}\\\begin{split}RX(\theta) = \exp\left(-i \th X\right) = \begin{pmatrix} \cos\left(\th\right) & -i\sin\left(\th\right) \\ -i\sin\left(\th\right) & \cos\left(\th\right) \end{pmatrix}\end{split}\end{aligned}\end{align} \]

Create new RX gate.

Attributes

condition_bits#: Get Clbits in condition.

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

name#: Return the name.

num_clbits#: Return the number of clbits.

num_qubits#: Return the number of qubits.

params#: return instruction params.

unit#: Get the time unit of duration.

Methods

control(num_ctrl_qubits=1, label=None, ctrl_state=None)[Quellcode]#

Return a (multi-)controlled-RX gate.

Parameter:

num_ctrl_qubits (int) – number of control qubits.
label (str or None) – An optional label for the gate [Default: None]
ctrl_state (int or str or None) – control state expressed as integer, string (e.g. ‚110‘), or None. If None, use all 1s.

Rückgabe:

controlled version of this gate.

Rückgabetyp:

ControlledGate

inverse()[Quellcode]#

Return inverted RX gate.

\(RX(\lambda)^{\dagger} = RX(-\lambda)\)

power(exponent)[Quellcode]#

Raise gate to a power.