qiskit.utils.validate_entangler_map

validate_entangler_map(entangler_map, num_qubits, allow_double_entanglement=False)

Validate a user supplied entangler map and converts entries to ints.

Parameters

• entangler_map (list[list]) – An entangler map, keys are source qubit index (int), value is array of target qubit index(es) (int)
• num_qubits (int) – Number of qubits
• allow_double_entanglement (bool) – If we allow in two qubits can be entangled each other

Returns

Validated/converted map

Return type

list

Raises

• TypeError – entangler map is not list type or list of list
• ValueError – the index of entangler map is out of range
• ValueError – the qubits are cross-entangled.