Computable constraints on entanglement-sharing of multipartite quantum states

Details Computable constraints on entanglement-sharing of multipartite quantum states Computable constraints on entanglement-sharing of multipartite quantum states

2010-04-28

arxiv.org/abs/1004.5148v1

Quantum Information & computation, Vol. 10, No.3&4(2010) 0223-0233

Physics

Quantum Physics

Scientific paper

Negativity is regarded as an important measure of entanglement in quantum information theory. In contrast to other measures of entanglement, it is easily computable for bipartite states in arbitrary dimensions. In this paper, based on the negativity and realignment, we provide a set of entanglement-sharing constraints for multipartite states, where the entanglement is not necessarily limited to bipartite and pure states, thus aiding in the quantification of constraints for entanglement-sharing. These may find applications in studying many-body systems.

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