FastCNOTUnitObjective
class qiskit.synthesis.unitary.aqc.FastCNOTUnitObjective(num_qubits, cnots)
Bases: CNOTUnitObjective
Implementation of objective function and gradient calculator, which is similar to DefaultCNOTUnitObjective but several times faster.
Parameters
- num_qubits (int) – number of qubits.
- cnots (ndarray) – a CNOT structure to be used in the optimization procedure.
Attributes
num_cnots
Returns: A number of CNOT units to be used by the approximate circuit.
num_thetas
Returns: Number of parameters (angles) of rotation gates in this circuit.
target_matrix
Returns: a matrix being approximated
Methods
gradient
gradient(param_values)
Computes the gradient of objective function. See description of the base class method.
Return type
objective
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
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