qiskit.aqua.operators.legacy.evolution_instruction

evolution_instruction(pauli_list, evo_time, num_time_slices, controlled=False, power=1, use_basis_gates=True, shallow_slicing=False, barrier=False)

Construct the evolution circuit according to the supplied specification.

Parameters

• pauli_list (list([[complex, Pauli]])) – The list of pauli terms corresponding to a single time slice to be evolved
• evo_time (Union(complex, float, Parameter, ParameterExpression)) – The evolution time
• num_time_slices (int) – The number of time slices for the expansion
• controlled (bool, optional) – Controlled circuit or not
• power (int, optional) – The power to which the unitary operator is to be raised
• use_basis_gates (bool, optional) – boolean flag for indicating only using basis gates when building circuit.
• shallow_slicing (bool, optional) – boolean flag for indicating using shallow qc.data reference repetition for slicing
• barrier (bool, optional) – whether or not add barrier for every slice

Returns

The Instruction corresponding to specified evolution.

Return type

Instruction

Raises

• AquaError – power must be an integer and greater or equal to 1
• ValueError – Unrecognized pauli