Asymptotic entanglement manipulation of bipartite pure states

Details Asymptotic entanglement manipulation of bipartite pure states Asymptotic entanglement manipulation of bipartite pure states

2006-10-23

arxiv.org/abs/quant-ph/0610199v1

Physics

Quantum Physics

7 pages, requires IEEEtran.cls

Scientific paper

Entanglement of pure states of bipartite quantum systems has been shown to have a unique measure in terms of the von Neumann entropy of the reduced states of either of its subsystems. The measure is established under entanglement manipulation of an asymptotically large number of copies of the states. In this paper, different asymptotic measures of entanglement assigned to arbitrary sequences of bipartite pure states are shown to coincide only when the sequence is information stable, in terms of the quantum spectral information rates of the sequence of subsystem states. Additional bounds on the optimal rates of entanglement manipulation protocols in quantum information are also presented, including bounds given by generalizations of the coherent information and the relative entropy of entanglement.

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