quantax.operator.S_p# quantax.operator.S_p(*index) → Operator# \(S^+\) operator \[\begin{split}S^+ = \begin{pmatrix} 0 & 1 \\ 0 & 0 \end{pmatrix}\end{split}\] Parameters: index – Site to act on, as a flat index or lattice coordinates; see the module docstring for the convention.