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quant-ph1999
Optimal signal ensembles
Benjamin Schumacher, Michael D. Westmoreland
Classical messages can be sent via a noisy quantum channel in various ways, corresponding to various choices of signal states of the channel. Previous work by Holevo and by Schumac…
quant-ph1999
Reversibility of local transformations of multiparticle entanglement
N. Linden, S. Popescu, B. Schumacher +1
We consider the transformation of multisystem entangled states by local quantum operations and classical communication. We show that, for any reversible transformation, the relativ…