Improving entanglement purification through coherent superposition of roles

Jorge Miguel-Ramiro; Alexander Pirker; Wolfgang Dür

doi:10.22331/q-2025-04-09-1702

Improving entanglement purification through coherent superposition of roles

Jorge Miguel-Ramiro, Alexander Pirker, and Wolfgang Dür

Universität Innsbruck, Institut für Theoretische Physik, Technikerstraße 21a, 6020 Innsbruck, Austria

Published:	2025-04-09, volume 9, page 1702
Editor:	Jens Siewert
Eprint:	arXiv:2408.00844v2
Doi:	https://doi.org/10.22331/q-2025-04-09-1702
Citation:	Quantum 9, 1702 (2025).

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Abstract

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.

Popular summary

We introduce a superposed entanglement purification design strategy, leveraging coherent superposition of the roles of entangled states to enhance protocols efficiency, and that can be integrated with existing entanglement purification strategies, consistently improving distillation performance.

► BibTeX data

@article{MiguelRamiro2025improving,
  doi = {10.22331/q-2025-04-09-1702},
  url = {https://doi.org/10.22331/q-2025-04-09-1702},
  title = {Improving entanglement purification through coherent superposition of roles},
  author = {Miguel-Ramiro, Jorge and Pirker, Alexander and D{\"{u}}r, Wolfgang},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {9},
  pages = {1702},
  month = apr,
  year = {2025}
}

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