Work

Characterizing universal gate sets via dihedral benchmarking

Year: 2015

Type: article

Abstract: We describe a practical experimental protocol for robustly characterizing the error rates of non-Clifford gates associated with dihedral groups, including small single-qubit rotations. Our dihedral benchmarking protocol is a generalization of randomized benchmarking that relaxes the usual unitary 2-design condition. Combining this protocol with existing randomized benchmarking schemes enables practical universal gate sets for quantum information processing to be characterized in a way that is robust against state-preparation and measurement errors. In particular, our protocol enables direct benchmarking of the $\ensuremath{\pi}/8$ gate even under the gate-dependent error model that is expected in leading approaches to fault-tolerant quantum computation.

Source: Physical Review A

DOI: 10.1103/physreva.92.060302

Authors: Arnaud Carignan-Dugas, Joel J. Wallman, Joseph Emerson

Institutions: University of Waterloo, Canadian Institute for Advanced Research

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: Canadian Institute for Advanced Research, Government of Ontario, Natural Sciences and Engineering Research Council of Canada, Army Research Office

Award: G7749294