Article

Quantum teleportation implies symmetry-protected topological order

Öffentlich Deposited
https://scholar.colorado.edu/concern/articles/d791sh87w
Abstract
  • We constrain a broad class of teleportation protocols using insights from locality. In the ``standard'' teleportation protocols we consider, all outcome-dependent unitaries are Pauli operators conditioned on linear functions of the measurement outcomes. We find that all such protocols involve preparing a ``resource state'' exhibiting symmetry-protected topological (SPT) order with Abelian protecting symmetry . The logical states are teleported between the edges of the chain by measuring the corresponding string order parameters in the bulk and applying outcome-dependent Paulis. Hence, this single class of nontrivial SPT states is both necessary and sufficient for the standard teleportation of qubits. We illustrate this result with several examples, including the cluster state, variants thereof, and a nonstabilizer hypergraph state.

Creator
Date Issued
  • 2024
Academic Affiliation
Journal Title
Journal Volume
  • 8
Zuletzt geändert
  • 2024-10-30
Resource Type
Urheberrechts-Erklärung
DOI
ISSN
  • 2521-327X
Language

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