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.


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

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

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.

returns z2 symmetries

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