FastCNOTUnitObjective

class qiskit.synthesis.unitary.aqc.FastCNOTUnitObjective(num_qubits, cnots)

Implementation of objective function and gradient calculator, which is similar to DefaultCNOTUnitObjective but several times faster.

Parameters

num_qubits (int(opens in a new tab)) – number of qubits.
cnots (ndarray(opens in a new tab)) – a CNOT structure to be used in the optimization procedure.

Attributes

Returns: A number of CNOT units to be used by the approximate circuit.

Returns: Number of parameters (angles) of rotation gates in this circuit.

Returns: a matrix being approximated

gradient(param_values)

Computes the gradient of objective function. See description of the base class method.

Return type

ndarray(opens in a new tab)

objective(param_values)

Computes the objective function and some intermediate data for the subsequent gradient computation. See description of the base class method.

Return type

float(opens in a new tab)

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