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Experimental verification of genuine multipartite entanglement without shared reference frames
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  • 分类:O413.1[理学—理论物理;理学—物理] P22[天文地球—大地测量学与测量工程;天文地球—测绘科学与技术]
  • 作者机构:[1]Key Laboratory of Quantum Information, University of Scienceand Technology of China, Chinese Academy of Sciences,Hefei 230026, China, [2]Synergetic Innovation Center of Quantum Information andQuantum Physics, University of Science and Technology ofChina, Hefei 230026, China
  • 相关基金:Acknowledgments This work was supported by the National Nat- ural Science Foundation of China (61327901, 61490711, 11274289, 11325419, 61225025, 11474268, and 11374288), the Strategic Pri- ority Research Program (B) of the Chinese Academy of Sciences (XDB01030300), the National Youth Top Talent Support Program of National High-level Personnel of Special Support Program, and the Fundamental Research Funds for the Central Universities (WK2470000018).
中文摘要:

量纠纷是为量信息处理的一个必要资源,为量通讯或为量计算。纠纷的多国参加的盒子,特别所谓的真多国参加的纠纷,为多国参加的量信息协议有重要重要性。因此,当执行许多量信息任务时,试验性地验证多国参加的量纠纷是一个自然要求。然而,这由于在所有深奥聚会之中造一个分享的参考框架的困难经常是技术上挑战性的,特别当这些聚会离对方远时。在这份报纸,没有分享的参考书框架,我们试验性地验证一个三光子的 Greenberger-Horne-Zeilinger 状态的真分成三部分的纠纷。高可能性当没有参考书框架被分享时,成功地验证真分成三部分的纠纷中的 0.79 个被完成。在分享仅仅一普通的轴的情况中, 0.91 的甚至更高的成功可能性被完成。

英文摘要:

Quantum entanglement is an essential resource for quantum information processing, either for quantum communication or for quantum computation. The multi- partite case of entanglement, especially the so called gen- uine multipartite entanglement, has significant importance for multipartite quantum information protocols. Thus, it is a natural requirement to experimentally verify multipartite quantum entanglement when performing many quantum int~rmation tasks. However, this is often technically chal- lenging due to the difficulty of building a shared reference lYame among all involved parties, especially when these parties are distant l~om each other. In this paper, we experimentally verify the genuine tripartite entanglement of a three-photon Greenberger-Horne-Zeilinger state without shared reference frames. A high probability 0.79 of successfully verifying the genuine tripartite entanglement is achieved when no reference frame is shared. In the case of sharing only one common axis, an even higher success probability of 0.91 is achieved.

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