FastCNOTUnitObjective
class FastCNOTUnitObjective(num_qubits, cnots)
Bases: qiskit.transpiler.synthesis.aqc.cnot_unit_objective.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.
Methods Defined Here
gradient
FastCNOTUnitObjective.gradient(param_values)
Computes the gradient of objective function. See description of the base class method.
Return type
ndarray
objective
FastCNOTUnitObjective.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
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
Return type
ndarray