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Frontiers in Optics

Center-Of-Mass Interpretation for Bi-Partite Purity Analysis of N-Party Entanglement

Miguel Angel Alonso, Xiao‐Feng Qian, Joseph H. Eberly

Published Jan 1, 2016• 0 citations
Publisher

Abstract

We provide a graphical description of multi-party entanglement based on a center-of-mass analogy. This description clarifies the existence of entanglement restrictions in the form of inequalities. Connections with optical polarization are discussed.
DOI
10.1364/fio.2016.ff3c.5

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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 NNN parties, each with an arbitrary number of (discrete) states. The case of NNN 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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