Abstract
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 parties, each with an arbitrary number of (discrete) states. The case of 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.
- Received 8 April 2016
DOI:https://doi.org/10.1103/PhysRevA.94.030303
©2016 American Physical Society