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Distilling three-party W-like states to randomly shared two-party entanglement

机译:蒸馏三方W样状态,随机分享双方纠缠

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In distilling Einstein-Podolsky-Rosen (EPR) pairs from three-party states, the optimal distillation rate for obtaining entanglement between a specified pair of parties has been previously shown to be the asymptotic entanglement of assistance. We have demonstrated a protocol for W and W-like three-party states in which higher overall distillation rates may be achieved at the cost of the bipartite entanglement obtained being shared between random pairs of parties. We have further derived various bounds on the distillation rate for the states in question.
机译:在从三方状态的蒸馏到Einstein-Podolsky-Rosen(EPR)对中,以前已经显示出在指定的一对各方之间获得缠结的最佳蒸馏速度是辅助的渐近纠缠。我们已经证明了用于W和W样的三方状态的方案,其中可以以在随机对方之间分享的二分纠缠的成本下实现较高的整体蒸馏速率。我们进一步衍生出各种界限,以了解所讨论的国家的蒸馏速度。

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