Impact of Network Constraints on Fault-Tolerant Distributed Quantum Computing

Quantum Physics arXiv:2606.17495 (quant-ph) [Submitted on 16 Jun 2026] Title:Impact of Network Constraints on Fault-Tolerant Distributed Quantum Computing Authors:Eneet Kaur, Shahrooz Pouryousef, Nitish Kumar Chandra, Hassan Shapourian, Jiapeng Zhao, Ramana Kompella, Reza Nejabati View a PDF of the paper titled Impact of Network Constraints on Fault-Tolerant Distributed Quantum Computing, by Eneet Kaur and 6 other authors View PDF HTML (experimental) Abstract:As we move towards scalable and modular quantum computing, quantum data centres become imperative. Existing analyses typically treat network constraints in isolation or through simplified models, leaving the interplay between error correction operations and communication resources underexplored. In this work, we present an end-to-end simulation framework that jointly models surface-code operations, internal QPU connectivity, and realistic network constraints including finite entanglement generation rates, limited communication qubits, and bandwidth contention, producing execution latency, from which logical error rate estimates are obtained. The framework is modular by design, allowing individual components such as routing heuristics, scheduling policies, and network topologies to be independently replaced. Numerical evaluation reveals distinct operating regimes in which the optimal resource allocation and code distance selection shift depending on the network characteristics. These results point to tradeoffs in the design of distributed quantum computing architectures that are not visible when computation and communication are modeled separately. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2606.17495 [quant-ph] (or arXiv:2606.17495v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2606.17495 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Eneet Kaur [view email] [v1] Tue, 16 Jun 2026 04:08:19 UTC (622 KB) Full-text links: Access Paper: View a PDF of the paper titled Impact of Network Constraints on Fault-Tolerant Distributed Quantum Computing, by Eneet Kaur and 6 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-06 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?)