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- W2308156876 abstract "In this paper, we show that the average three-tangle of the reduced tripartite density matrix for some quadripartite pure states can be increased by some potential measurements on the fourth subsystem, which means this type of quadripartite entanglement can be localized. In particular, we prove that the maximal increment with all potential measurements taken into account is a quadripartite entanglement monotone, so it quantifies this localized quadripartite entanglement. By analyzing quadripartite pure states based on the previous classification, we find that this quadripartite entanglement monotone is not only present in the standard GHZ state and absent in the standard W states. In addition, based on the proposed entanglement measure, we construct a new monogamy relation." @default.
- W2308156876 created "2016-06-24" @default.
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- W2308156876 date "2012-03-29" @default.
- W2308156876 modified "2023-09-24" @default.
- W2308156876 title "Localized quadripartite entanglement" @default.
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- W2308156876 doi "https://doi.org/10.1103/physreva.85.032332" @default.
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