Back to News
quantum-computing

Overcoming disorder in superconducting globally-driven quantum computing

Riccardo Aiudi, Julien Despres, Roberto Menta, Ashkan Abedi, Guido Menichetti, Vittorio Giovannetti, Marco Polini, Francesco Caravelli
Loading...
3 min read
0 likes
⚡ Quantum Brief
Researchers demonstrated how pulse optimization can mitigate fabrication defects in superconducting quantum processors using a globally driven ladder architecture. Their study, published October 2025, shows optimized control pulses restore high-fidelity operations despite inherent hardware disorder. Static disorder—variations in qubit frequencies and coupling strengths—was found to severely degrade single-qubit rotations, two-qubit gates, and quantum information transport. Numerical simulations quantified performance drops, identifying these operations as the most vulnerable to fabrication imperfections. The team employed GRAPE (Gradient Ascent Pulse Engineering) to design optimized pulse sequences. These tailored controls achieved fidelities exceeding 99.9% for critical operations, effectively neutralizing disorder’s impact on quantum logic and data flow. Results validate pulse optimization as a scalable solution for solid-state quantum computers, particularly in globally controlled systems where individual qubit tuning is impractical. This approach reduces reliance on perfect hardware fabrication. The work advances fault-tolerant quantum computing by proving robust performance is possible even with realistic disorder levels, paving the way for more resilient superconducting quantum processors.
AI Audio Summary
0:00 / 0:00
Click to play
Quantum computing technology
Unsplash · Validated Fallback

Quantum Physics arXiv:2510.25996 (quant-ph) [Submitted on 29 Oct 2025] Title:Overcoming disorder in superconducting globally-driven quantum computing Authors:Riccardo Aiudi, Julien Despres, Roberto Menta, Ashkan Abedi, Guido Menichetti, Vittorio Giovannetti, Marco Polini, Francesco Caravelli View a PDF of the paper titled Overcoming disorder in superconducting globally-driven quantum computing, by Riccardo Aiudi and 7 other authors View PDF HTML (experimental) Abstract:We study the impact of static disorder on a globally-controlled superconducting quantum computing architecture based on a quasi-two-dimensional ladder geometry [R. Menta et al., Phys. Rev. Research 7, L012065 (2025)]. Specifically, we examine how fabrication-induced inhomogeneities in qubit resonant frequencies and coupling strengths affect quantum state propagation and the fidelity of fundamental quantum operations. Using numerical simulations, we quantify the degradation in performance due to disorder and identify single-qubit rotations, two-qubit entangling gates, and quantum information transport as particularly susceptible. To address this challenge, we rely on pulse optimization schemes, and, in particular, on the GRAPE (Gradient Ascent Pulse Engineering) algorithm. Our results demonstrate that, even for realistic levels of disorder, optimized pulse sequences can achieve high-fidelity operations, exceeding 99.9% for the three quantum operations, restoring reliable universal quantum logic and robust information flow. These findings highlight pulse optimization as a powerful strategy to enhance the resilience to disorder of solid-state globally-driven quantum computing platforms. Comments: Subjects: Quantum Physics (quant-ph); Superconductivity (cond-mat.supr-con) Cite as: arXiv:2510.25996 [quant-ph] (or arXiv:2510.25996v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2510.25996 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Roberto Menta [view email] [v1] Wed, 29 Oct 2025 22:13:11 UTC (32,941 KB) Full-text links: Access Paper: View a PDF of the paper titled Overcoming disorder in superconducting globally-driven quantum computing, by Riccardo Aiudi and 7 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-10 Change to browse by: cond-mat cond-mat.supr-con 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?) Links to Code Toggle Papers with Code (What is Papers with Code?) 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?)

Read Original

Tags

quantum-computing
quantum-hardware
superconducting-qubits

Source Information

Source: arXiv Quantum Physics

Discussion

0 professional contributions

Sign in to join this professional discussion.

Be the first to add a constructive contribution.