# HGate¶

class HGate(label=None)[Quellcode]

Bases: Gate

This gate is a pi rotation about the X+Z axis, and has the effect of changing computation basis from $$|0\rangle,|1\rangle$$ to $$|+\rangle,|-\rangle$$ and vice-versa.

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

Circuit symbol:

     ┌───┐
q_0: ┤ H ├
└───┘


Matrix Representation:

$\begin{split}H = \frac{1}{\sqrt{2}} \begin{pmatrix} 1 & 1 \\ 1 & -1 \end{pmatrix}\end{split}$

Create new H gate.

Methods Defined Here

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

Attributes

condition_bits

Get Clbits in condition.

Rückgabetyp

List[Clbit]

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

Rückgabetyp

str

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.