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Verified measurement-based quantum computing with hypergraph states

Quantum Physics 2017-12-27 v1

Abstract

Hypergraph states are generalizations of graph states where controlled-ZZ gates on edges are replaced with generalized controlled-ZZ gates on hyperedges. Hypergraph states have several advantages over graph states. For example, certain hypergraph states, such as the Union Jack states, are universal resource states for measurement-based quantum computing with only Pauli measurements, while graph state measurement-based quantum computing needs non-Clifford basis measurements. Furthermore, it is impossible to classically efficiently sample measurement results on hypergraph states with a constant LL1-norm error unless the polynomial hierarchy collapses to the third level. Although several protocols have been proposed to verify graph states with only sequential single-qubit Pauli measurements, there was no verification method for hypergraph states. In this paper, we propose a method for verifying hypergraph states with only sequential single-qubit Pauli measurements. As applications, we consider verified blind quantum computing with hypergraph states, and quantum supremacy demonstrations with hypergraph states.

Keywords

Cite

@article{arxiv.1701.05688,
  title  = {Verified measurement-based quantum computing with hypergraph states},
  author = {Tomoyuki Morimae and Yuki Takeuchi and Masahito Hayashi},
  journal= {arXiv preprint arXiv:1701.05688},
  year   = {2017}
}

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5 pages, 1 figure