z i ZSrSSKJr SSKJr SSKJr SSKJr SSK J r "SS\5r g ) z6Transpiler pass to drop gates with negligible effects.) annotations) DAGCircuit)Target)TransformationPass)remove_identity_equivcN^\rSrSrSrSSS.S U4SjjjrS SjrSrU=r$) RemoveIdentityEquivalentacRemove gates with negligible effects. Removes gates whose effect is close to an identity operation up to a global phase and up to the specified tolerance. Parameterized gates are not considered by this pass. For a cutoff fidelity :math:`f`, this pass removes gates whose average gate fidelity with respect to the identity is below :math:`f`. Concretely, a gate :math:`G` is removed if :math:`\bar F < f` where .. math:: \bar{F} = \frac{1 + d F_{\text{process}}}{1 + d},\ F_{\text{process}} = \frac{|\mathrm{Tr}(G)|^2}{d^2} where :math:`d = 2^n` is the dimension of the gate for :math:`n` qubits. g?N)approximation_degreetargetc:>[TU]5 XlX lg)aInitialize the transpiler pass. Args: approximation_degree: The degree to approximate for the equivalence check. This can be a floating point value between 0 and 1, or ``None``. If the value is 1 this does not approximate above the floating point precision. For a value < 1 this is used as a scaling factor for the cutoff fidelity. If the value is ``None`` this approximates up to the fidelity for the gate specified in ``target``. In case no ``target`` is set we approximate up to ``16 * machine_eps`` as default to account for accumulations on few-qubit systems. target: If ``approximation_degree`` is set to ``None`` and a :class:`.Target` is provided for this field the tolerance for determining whether an operation is equivalent to identity will be set to the reported error rate in the target. If ``approximation_degree`` (the default) this has no effect, if ``approximation_degree=None`` it uses the error rate specified in the ``Target`` for the gate being evaluated, and a numeric value other than 1 with ``target`` set is used as a scaling factor of the target's error rate. N)super__init___approximation_degree_target)selfr r __class__s u/home/james-whalen/.local/lib/python3.13/site-packages/qiskit/transpiler/passes/optimization/remove_identity_equiv.pyr!RemoveIdentityEquivalent.__init__*s, %9" cF[XRUR5 U$)N)rrr)rdags rrunRemoveIdentityEquivalent.runDsc#=#=t||L r)rr)r z float | Noner z None | TargetreturnNone)rrrr) __name__ __module__ __qualname____firstlineno____doc__rr__static_attributes__ __classcell__)rs@rr r s<&7:SW'3CP 4rr N) r! __future__rqiskit.dagcircuitrqiskit.transpiler.targetrqiskit.transpiler.basepassesr(qiskit._accelerate.remove_identity_equivrr rrr*s&="(+;J/1/r