qiskit.aqua.operators.legacy.LegacyBaseOperator

class LegacyBaseOperator(basis=None, z2_symmetries=None, name=None)

Operators relevant for quantum applications.

Constructor.

abstract __init__(basis=None, z2_symmetries=None, name=None)

Constructor.

Methods

__init__([basis, z2_symmetries, name])	Constructor.
chop(threshold[, copy])
construct_evaluation_circuit(wave_function, …)	Build circuits to compute the expectation w.r.t the wavefunction.
evaluate_with_result(result, …)	Consume the result from the quantum computer to build the expectation, will be only used along with the construct_evaluation_circuit() method.
evolve(state_in, evo_time, num_time_slices, …)	Time evolution, exp^(-jt H).
is_empty()	Check Operator is empty or not
print_details()	print details
to_opflow()	Convert to new Operator format.

Attributes

basis	returns basis
name	returns name
num_qubits	Returns number of qubits for operator
z2_symmetries	returns z2 symmetries

property basis

returns basis

abstract chop(threshold, copy=False)

abstract construct_evaluation_circuit(wave_function, statevector_mode, **kwargs)

Build circuits to compute the expectation w.r.t the wavefunction.

abstract evaluate_with_result(result, statevector_mode, **kwargs)

Consume the result from the quantum computer to build the expectation, will be only used along with the construct_evaluation_circuit() method.

abstract evolve(state_in, evo_time, num_time_slices, expansion_mode, expansion_order, **kwargs)

Time evolution, exp^(-jt H).

abstract is_empty()

Check Operator is empty or not

property name

returns name

abstract property num_qubits

Returns number of qubits for operator

abstract print_details()

print details

abstract to_opflow()

Convert to new Operator format.

property z2_symmetries

returns z2 symmetries