qiskit.circuit.QuantumCircuit.save_density_matrix¶
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QuantumCircuit.save_density_matrix(qubits=None, label='density_matrix', unnormalized=False, pershot=False, conditional=False)¶ Save the current simulator quantum state as a density matrix.
- Parameters
qubits (list or None) – the qubits to save reduced density matrix on. If None the full density matrix of qubits will be saved [Default: None].
label (str) – the key for retrieving saved data from results.
unnormalized (bool) – If True return save the unnormalized accumulated or conditional accumulated density matrix over all shots [Default: False].
pershot (bool) – if True save a list of density matrices for each shot of the simulation rather than the average over all shots [Default: False].
conditional (bool) – if True save the average or pershot data conditional on the current classical register values [Default: False].
- Returns
with attached instruction.
- Return type