期刊
PHYSICAL REVIEW A
卷 94, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.030303
关键词
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资金
- National Science Foundation [PHY-1507278, PHY-1068325, PHY-1505189]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1507278] Funding Source: National Science Foundation
We provide a graphical description of the entanglement of pure-state multiparty systems based on an analogy between a bipartite purity analysis and the centroid of a collection of point masses. This description applies to quantum systems with N parties, each with an arbitrary number of (discrete) states. The case of N qubits is highlighted for simplicity. This geometric description illustrates some of the restrictions in the form of inequalities that apply to entanglement in multiparty systems.
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