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Random entanglement percolation on realistic quantum networks

arXiv Quantum Physics
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⚡ Quantum Brief
A new study examines random entanglement percolation in quantum networks where edge probabilities vary, unlike fixed models, offering a more realistic framework for quantum communication. The research highlights polarization-dependent loss (PDL) as a key physical mechanism generating random entanglement in photonic networks, linking polarization imbalance directly to singlet-conversion probabilities. A novel mapping technique converts PDL magnitudes into edge entanglement probabilities, simplifying analysis of heterogeneous quantum networks under real-world conditions. Representative PDL models are analyzed to demonstrate how polarization fluctuations impact entanglement distribution, revealing critical thresholds for network connectivity. The findings provide practical insights for designing robust quantum repeaters and networks, addressing challenges in scalable, long-distance quantum communication.
Random entanglement percolation on realistic quantum networks

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Quantum Physics arXiv:2604.21967 (quant-ph) [Submitted on 23 Apr 2026] Title:Random entanglement percolation on realistic quantum networks Authors:Alessandro Romancino View a PDF of the paper titled Random entanglement percolation on realistic quantum networks, by Alessandro Romancino View PDF HTML (experimental) Abstract:We study random entanglement percolation in heterogeneous quantum networks, where the singlet-conversion probabilities (SCPs) of the edges are drawn from a probability distribution rather than being fixed. After briefly recalling random classical and random quantum entanglement percolation, we focus on polarization-dependent loss (PDL) as a physical source of random edge entanglement in photonic networks. In this setting, polarization imbalance induces a simple map from the PDL magnitude to the edge SCP. We illustrate this map for representative PDL models and discuss the resulting implications for entanglement percolation. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.21967 [quant-ph] (or arXiv:2604.21967v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2604.21967 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Alessandro Romancino [view email] [v1] Thu, 23 Apr 2026 18:00:00 UTC (43 KB) Full-text links: Access Paper: View a PDF of the paper titled Random entanglement percolation on realistic quantum networks, by Alessandro RomancinoView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)

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Source: arXiv Quantum Physics