qiskit.quantum_info.DensityMatrix.evolve

DensityMatrix.evolve(other, qargs=None)

Evolve a quantum state by an operator.

Parameters

• (Operator or QuantumChannel (other) – or Instruction or Circuit): The operator to evolve by.

• qargs (list) – a list of QuantumState subsystem positions to apply the operator on.

Returns

the output quantum state.

Return type

QuantumState

Raises

QiskitError – if the operator dimension does not match the specified QuantumState subsystem dimensions.