A matrix realignment method for recognizing entanglement
Quantum Information & Computation
Measurimg polynomial functions of states
Quantum Information & Computation
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Negativity is regarded as an important measure of entanglement in quantum informa-tion theory. In contrast to other measures of entanglement, it is easily computable forbipartite states in arbitrary dimensions. In this paper, based on the negativity and re-alignment, we provide a set of entanglement-sharing constraints for multipartite states,where the entanglement is not necessarily limited to bipartite and pure states, thusaiding in the quantification of constraints for entanglement-sharing. These may findapplications in studying many-body systems.