operator_qubit_subspace

Spin.operator_qubit_subspace: Components1D

Pauli operators defined on the qubit subspace.

Tip

The components (x, y or z) are available, for example, by:

>>> spin.operator_qubit_subspace.z
array([[ 0.+0.j,  0.+0.j,  0.+0.j],
       [ 0.+0.j,  1.+0.j,  0.+0.j],
       [ 0.+0.j,  0.+0.j, -1.+0.j]])

The identity operator is also stored:

>>> spin.operator_qubit_subspace.i
array([[0.+0.j, 0.+0.j, 0.+0.j],
       [0.+0.j, 1.+0.j, 0.+0.j],
       [0.+0.j, 0.+0.j, 1.+0.j]])