Polygamy of Distributed Entanglement

Details Polygamy of Distributed Entanglement Polygamy of Distributed Entanglement

2009-03-25

arxiv.org/abs/0903.4413v2

Phys. Rev. A 80, 012324 (2009)

Physics

Quantum Physics

9 pages, 1 figure, few typos corrected

Scientific paper

10.1103/PhysRevA.80.012324

While quantum entanglement is known to be monogamous (i.e. shared entanglement is restricted in multi-partite settings), here we show that distributed entanglement (or the potential for entanglement) is by nature polygamous. By establishing the concept of one-way unlocalizable entanglement (UE) and investigating its properties, we provide a polygamy inequality of distributed entanglement in tripartite quantum systems of arbitrary dimension. We also provide a polygamy inequality in multi-qubit systems, and several trade offs between UE and other correlation measures.

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