Applied Math Grad Colloquium I A polar decomposition for quantum channels to track error features in large circuits
Arnaud Carignan-Dugas, IQC / Department of Applied Mathematics
Inevitably, assessing the overall performance of a quantum computer must rely on characterizing some of its elementary constituents and, from this information, formulate a broader statement concerning more complex constructions thereof. However, given the vastitude of possible quantum errors as well as their coherent nature, accurately inferring the quality of composite operations is generally difficult.