Evaluable multipartite entanglement measures: Multipartite concurrences as entanglement monotones
Rafał Demkowicz-Dobrzański, Andreas Buchleitner, Marek Kuś, Florian Mintert · Physical Review A · 2006
We discuss the monotonicity of systematically constructed quantities aiming at the quantification of the entanglement properties of multipartite quantum systems, under local operations and classical communication. We provide a necessary and sufficient condition for the monotonicity of generalized multipartite concurrences which qualifies them as legitimate entanglement measures.