Universal gates via fusion and measurement operations on SU(2)4 anyons

Claire Levaillant, Bela Bauer, Michael Freedman, Zhenghan Wang, and Parsa Bonderson
Phys. Rev. A 92, 012301 – Published 1 July 2015

Abstract

We examine a class of operations for topological quantum computation based on fusing and measuring topological charges for systems with SU(2)4 or k=4 Jones-Kauffman anyons. We show that such operations augment the braiding operations, which, by themselves, are not computationally universal. This augmentation results in a computationally universal gate set through the generation of an exact, topologically protected irrational phase gate and an approximate, topologically protected controlled-Z gate.

  • Received 10 April 2015

DOI:https://doi.org/10.1103/PhysRevA.92.012301

©2015 American Physical Society

Authors & Affiliations

Claire Levaillant1, Bela Bauer2, Michael Freedman1,2, Zhenghan Wang1,2, and Parsa Bonderson2

  • 1Department of Mathematics, University of California, Santa Barbara, California 93106, USA
  • 2Station Q, Microsoft Research, Santa Barbara, California 93106-6105, USA

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Vol. 92, Iss. 1 — July 2015

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