419 citations · 5.7k across the 133 of their papers we have counts for
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Concurrence of quasi pure quantum states
Florian Mintert, Andreas Buchleitner
We derive an analytic approximation for the concurrence of weakly mixed bipartite quantum states - typical objects in state of the art experiments. This approximation is shown to b…
Concurrence of mixed multi-partite quantum states
Florian Mintert, Marek Kus, Andreas Buchleitner
We propose generalizations of concurrence for multi-partite quantum systems that can distinguish qualitatively distinct quantum correlations. All introduced quantities can be evalu…
Decoherence and multipartite entanglement
André R. R. Carvalho, Florian Mintert, Andreas Buchleitner
We study the dynamics of multipartite entanglement under the influence of decoherence. A suitable generalization of concurrence reveals distinct scaling of the entanglement decay r…
Concurrence of mixed bipartite quantum states in arbitrary dimensions
Florian Mintert, Marek Kus, Andreas Buchleitner
We derive a lower bound for the concurrence of mixed bipartite quantum states, valid in arbitrary dimensions. As a corollary, a weaker, purely algebraic estimate is found, which de…