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Gaussian transformations and distillation of entangled Gaussian states

Jaromir Fiurasek
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Abstract

We prove that it is impossible to distill more entanglement from a single copy of a two-mode bipartite entangled Gaussian state via LOCC Gaussian operations. More generally, we show that any hypothetical distillation protocol for Gaussian states involving only Gaussian operations would be a deterministic protocol. Finally, we argue that the protocol considered by Eisert et al. [quant-ph/0204052] is the optimum Gaussian distillation protocol for two copies of entangled Gaussian states.

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Jaromir Fiurasek. 2002-04-19. Gaussian transformations and distillation of entangled Gaussian states. https://doi.org/10.1103/physrevlett.89.137904

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