qiskit.quantum_info.entanglement_of_formation

entanglement_of_formation(state)

Calculate the entanglement of formation of quantum state.

The input quantum state must be either a bipartite state vector, or a 2-qubit density matrix.

パラメータ

state (Statevector or DensityMatrix) – a 2-qubit quantum state.

戻り値

The entanglement of formation.

戻り値の型

float

例外

• QiskitError – if the input state is not a valid QuantumState.

• QiskitError – if input is not a bipartite QuantumState.

• QiskitError – if density matrix input is not a 2-qubit state.