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.
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Publication: http://arxiv.org/abs/2310.10561
Presenters
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David L Feder
University of Calgary
Authors
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David L Feder
University of Calgary
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Zhuohao Liu
University of Calgary
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Emma C Johnson
University of Calgary