dq.sigmap

sigmap(*, layout: Layout | None = None) -> QArray

Returns the Pauli raising operator \(\sigma_+\).

It is defined by \(\sigma_+ = \begin{pmatrix} 0 & 1 \\ 0 & 0 \end{pmatrix}\).

Parameters

• layout –

  Matrix layout (dq.dense, dq.dia or None).

Returns

(qarray of shape (2, 2)) Pauli \(\sigma_+\) operator.

Examples

>>> dq.sigmap()
QArray: shape=(2, 2), dims=(2,), dtype=complex64, layout=dia, ndiags=1
[[  ⋅    1.+0.j]
 [  ⋅      ⋅   ]]