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Improving entanglement purification through coherent superposition of roles
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Improving entanglement purification through coherent superposition of roles
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Entanglement purification and distillation protocols are essential for harnessing the full potential of quantum communication technologies. Multiple strategies have been proposed to approach and optimize such protocols, most however restricted to Clifford operations. In this paper, we introduce a superposed entanglement purification design strategy, leveraging coherent superpositions of the roles of entangled states to enhance purification efficiency, defining a new family of non-Clifford distillation protocols. We demonstrate how this approach can be hierarchically integrated with existing entanglement purification strategies, consistently improving protocols performance.
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Cited by 1 Pith paper
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A double selection entanglement distillation-based state estimator
Double selection distillation statistics alone suffice to estimate Bell-diagonal parameters of undistilled and post-processed states, outperforming prior distillation-based estimators in resource use.
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