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TdgGate

class TdgGate(label=None)[source]

Bases: Gate

Single qubit T-adjoint gate (~Z**0.25).

It induces a \(-\pi/4\) phase.

This is a non-Clifford gate and a fourth-root of Pauli-Z.

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

Matrix Representation:

\[\begin{split}Tdg = \begin{pmatrix} 1 & 0 \\ 0 & e^{-i\pi/4} \end{pmatrix}\end{split}\]

Circuit symbol:

     ┌─────┐
q_0: ┤ Tdg ├
     └─────┘

Equivalent to a \(-\pi/4\) radian rotation about the Z axis.

Create new Tdg gate.

Methods Defined Here

inverse

Return inverse Tdg gate (i.e.

power

Raise gate to a power.

Attributes

condition_bits

Get Clbits in condition.

রিটার্ন টাইপ

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

রিটার্ন টাইপ

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.