Zero state $\lvert 0\rangle$ implementation using Qiskit. A freshly allocated qubit in Qiskit starts in $\lvert 0\rangle$ by default.
from qiskit import QuantumCircuit from qiskit.quantum_info import Statevector qc = QuantumCircuit(1) # No gates needed — default initial state is |0> print(Statevector(qc)) # Statevector([1.+0.j, 0.+0.j], dims=(2,))