Quantum, Quantum Computing, Algebra, Logic Gates.
often see the S†-gate, (also “S-dagger”, “Sdg” or √Z†-gate). The S†-gate is clearly a P-gate with ϕ=−π/2: The name “√Z-gate” comes from the fact that two successively applied S-gates has the same effect as one Z-gate: SS|q⟩=Z|q⟩ To apply an S-gate on our qubit in Qiskit: qc = QuantumCircuit(1)