Locality of three-qubit Greenberger-Horne-Zeilinger-symmetric states
نویسندگان
چکیده
The hierarchy of nonlocality and entanglement in multipartite systems is one the fundamental problems quantum physics. We study this topic three-qubit considering classification stochastic local operations classical communication (SLOCC). equivalence under SLOCC divides states into separable, biseparable, $W$, Greenberger-Horne-Zeilinger (GHZ) classes. $W$ GHZ are two subclasses genuine tripartite entanglement. adopt family GHZ-symmetric as a research subject, which share symmetries state have complete characterization In biseparable region (with bipartite entanglement), there exist that found to be fully local. addition, bilocal both That is, neither can ensure genuinely nonlocality.
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2022
ISSN: ['1538-4446', '1050-2947', '1094-1622']
DOI: https://doi.org/10.1103/physreva.105.062202