Symmetry protected topological order as a requirement for measurement-based quantum gate teleportation

ORAL

Abstract

All known resource states for measurement-based quantum teleportation in correlation space possess symmetry protected topological order, but is this a sufficient or even necessary condition? This work considers two families of one-dimensional qubit states to answer this question in the negative. The first is a family of matrix-product states with bond dimension two that includes the cluster state as a special case, protected by a global non-onsite symmetry, which is unable to deterministically teleport gates and which is characterized by a non-degenerate entanglement spectrum. The second are states with bond dimension four that are a resource for deterministic universal teleportation of finite single-qubit gates, but which possess no symmetry.

* This work was supported by the Natural Sciences and Engineering Research Council of Canada.

Publication: http://arxiv.org/abs/2310.10561

Presenters

  • David L Feder

    University of Calgary

Authors

  • David L Feder

    University of Calgary

  • Zhuohao Liu

    University of Calgary

  • Emma C Johnson

    University of Calgary