English

Nonlocality without entanglement in general multipartite quantum systems

Quantum Physics 2023-01-02 v1

Abstract

The construction of nonlocal sets of quantum states has attracted much attention in recent years. We first introduce two Lemmas related to the triviality of orthogonality-preserving local measurements. Then we propose a general construction of nonlocal set of n(d1)+1n(d-1)+1 orthogonal product states in (Cd)n(\mathbb{C}^{d})^{\otimes n}. The sets of nonlocal orthogonal product states are also put forward for the multipartite quantum systems with arbitrary dimensions. Our novel construction gives rise to nonlocal sets of orthogonal product states with much less members and thus reveals the phenomenon of nonlocality without entanglement more efficiently.

Keywords

Cite

@article{arxiv.2212.14523,
  title  = {Nonlocality without entanglement in general multipartite quantum systems},
  author = {Xiao-Fan Zhen and Shao-Ming Fei and Hui-Juan Zuo},
  journal= {arXiv preprint arXiv:2212.14523},
  year   = {2023}
}

Comments

6 pages, 4 figures

R2 v1 2026-06-28T07:56:35.992Z