Quantum Error Correction

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Overview

Quantum error correction studies how to protect quantum information from noise, a prerequisite for long computations and reliable quantum computers. It encodes logical qubits in stabilizer codes such as surface and quantum low-density parity-check (LDPC) codes, repeatedly measures error syndromes, and designs fault-tolerant gates and syndrome-extraction circuits. Decoders range from minimum-weight matching and belief propagation with ordered-statistics decoding to tensor-network and neural methods; code discovery also uses algebraic search, optimization, and learned proposals, sometimes tailored to hardware noise. The central challenge is to improve logical accuracy while keeping qubit overhead, decoding latency, and calibration manageable on real devices, where simulated noise models may not predict hardware performance.

Latest papers

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33 papers4 papers in the last four weeks, level with the four weeks before. 0.0% of all new papers.

  1. LiftDiff: Guided Discrete Diffusion for Quantum Code Construction

    Oct 18, 2026Yotam Peled, Eliya NachmaniQuantum Error CorrectionQuantum LDPC Codes

    School of Electrical And Computer Engineering, Ben-Gurion University of the Negev, Israel

  2. Distance Prediction for Quantum Codes

    Oct 13, 2026Nadav Schneider, Eliya NachmaniQuantum LDPC CodesQuantum Error Correction

    School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Israel

  3. Large Language Model-Guided Discovery of Weight-Five Bivariate Bicycle Codes

    Oct 5, 2026Juan Cruz-BenitoQuantum LDPC CodesQuantum Error Correction

    IBM Research

  4. Symmetry and AI-assisted discovery of magic-state factories

    Oct 5, 2026Shubham P. Jain, Adam Wills, Shraddha SinghQuantum Error Correction

    Joint Center for Quantum Information and Computer Science, NIST/University of Maryland, College Park, Maryland 20742, USA · IBM Quantum, IBM T.J. Watson Research Center, Yorktown Heights, New York 10598, USA · Center for Theoretical Physics, a Leinweber Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

  5. When Quantum Meets AI: Quantum Methods for Machine Learning and Machine Learning Methods for Quantum Systems

    Sep 22, 2026Tak HurNeural Quantum StatesQuantum Error Correction

    Department of Statistics and Data Science Graduate School Yonsei University

  6. Securing quantum error correction against misleading advice from AI agents

    Sep 16, 2026A. Barış ÖzgülerAI Agent ReliabilityQuantum Error Correction

  7. Reinforcement Learning for Syndrome Extraction

    Sep 10, 2026John Zhuoyang Ye, Aarav Pabla, Jens PalsbergQuantum Error CorrectionError-Correcting Codes

    University of California, Los Angeles Los Angeles, United States

  8. A Sim-to-Real Study of Surface-Code Decoder Benchmarking

    Sep 3, 2026Shay J. Manor, Leila S. Erhili, Yassine JebbouriQuantum Error CorrectionQuantum Error Correction Decoding

    Department of Computer Science, Purdue University, West Lafayette, IN 47907 USA · Department of Computer Science, Columbia University, New York, NY 10027 USA · Data Science Institute, Columbia University, New York, NY 10027 USA

  9. Machine Learning Approaches to Decoding Topological Quantum Codes

    Aug 16, 2026Changwon Lee, Tak Hur, Jeongwoo Jae +1Quantum Error Correction DecodingNeural Decoding

    Department of Statistics and Data Science, Yonsei University, Seoul 03722, Republic of Korea · R&D center, Samsung SDS, Seoul 05510, Republic of Korea · Department of Applied Statistics, Yonsei University, Seoul 03722, Republic of Korea +1

  10. Multi-agent discovery of practical quantum LDPC codes

    Aug 10, 2026Dongheng Qian, Tianyi LiAI Agents for Scientific DiscoveryAutomated Algorithm Discovery

    State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China · Shanghai Research Center for Quantum Sciences, Shanghai 201315, China · University of Wisconsin–Madison, Madison, Wisconsin 53706, USA

  11. Provably Efficient Self-Calibrating Quantum Fault Tolerance

    Aug 6, 2026Weiyuan Gong, Hong-Ye HuQuantum LDPC CodesQuantum Error Correction

    School of Engineering and Applied Sciences, Harvard University, Allston, MA 02134, USA · Department of Physics, Harvard University, Cambridge, MA 02138, USA

  12. QAdapt: A Noise-Adaptive Neural Pre-Decoding Framework for Quantum Error Correction

    Jul 30, 2026Ran Miao, Rui Luo, Xiaohan Shan +1Distribution ShiftNeural Decoding

    Beijing Zhongke Qhub Technology Co., Ltd. (Qhub), Beijing, China · Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing, China · Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China

  13. OmniQEC: discovering practical quantum error-correcting codes by an AI scientist

    Jul 28, 2026Ge Yan, Shanchuan Li, Pengyue Ma +5AI Agents for Scientific DiscoveryQuantum LDPC Codes

    College of Computing and Data Science, Nanyang Technological University, Singapore · Department of Electrical Engineering and Computer Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan · 3Zhejiang University of Technology, China +3

  14. Machine-learned syndrome post-selection for reliable quantum error correction

    Jul 21, 2026Tobias Haug, Askery Canabarro, Leandro AolitaQuantum Error CorrectionClassification

    Quantum Research Center, Technology Innovation Institute, Abu Dhabi, UAE · Campus Arapiraca, Federal University of Alagoas, Arapiraca-AL, Brazil

  15. MDQEC-QAS: Meta-Decoding for Quantum Error Correction with Hardware-Aware VQC Search and Confidence-Gated Recovery

    Jul 12, 2026Prashant Kumar Choudhary, Nouhaila Innan, Muhammad Shafique +1Variational Quantum CircuitsSelective Prediction

    Department of Physics, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, India · eBRAIN Lab, Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE · Center for Quantum and Topological Systems (CQTS), NYUAD Research Institute, NYUAD, Abu Dhabi, UAE

  16. Latency-Constrained Hardware-Aware Quantum Error Correction Co-Design with Adaptive Confidence-Gated Neural Decoding for the Rotated Surface Code

    Jul 7, 2026Sumit ChongderNeural DecodingQuantum Error Correction

    Department of Physics, Quantum Information and Computation, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342037, India

  17. Low-Overhead Error-Corrected QCNNs Using Bivariate Bicycle Codes

    Jul 7, 2026Alejandro Rosales, Animesh YadavQuantum Convolutional Neural NetworksQuantum Error Correction

    School of Electrical Engineering and Computer Science Ohio University, Athens, OH, USA

  18. Efficient foundation decoders for fault-tolerant quantum computing

    Jun 25, 2026Ge Yan, Shanchuan Li, Shiyi Xiao +4Neural DecodingQuantum Error Correction

    College of Computing and Data Science, Nanyang Technological University, Singapore · Department of Electrical Engineering and Computer Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan · School of Artificial Intelligence, Shanghai Jiao Tong University, Shanghai, China +2

  19. Large-Language-Model Discovery of Quantum LDPC Codes through Structured Concept Evolution

    Jun 23, 2026Zidu Liu, Florian MarquardtQuantum LDPC CodesQuantum Error Correction

    Max Planck Institute for the Science of Light, 91058 Erlangen, Germany · Department of Physics, Friedrich-Alexander University Erlangen-Nürnberg, 91058 Erlangen, Germany

  20. Quantum Global Variational Learning for Quantum Error Correction

    Jun 7, 2026Shun Ryuzaki, Hideo MukaiQuantum Error CorrectionVariational Quantum Circuits

    Computer Science Program, Graduate School of Science and Technology, Meiji University · Department of Computer Science, School of Science and Technology, Meiji University

  21. Evolutionary Discovery of Bivariate Bicycle Codes with LLM-Guided Search

    Jun 1, 2026Juan Cruz-Benito, Andrew W. Cross, David Kremer +1Automated Algorithm DiscoveryQuantum LDPC Codes

    IBM Research, IBM T. J. Watson Research Center, NY, USA

  22. Learning Logical Operations for Arbitrary Quantum Error Correction Codes

    May 27, 2026Nico Meyer, Christopher Mutschler, Dominik Seuß +2Quantum Error CorrectionVariational Quantum Circuits

    Fraunhofer IIS, Fraunhofer Institute for Integrated Circuits IIS, Nuremberg, Germany · Pattern Recognition Lab, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany · University of Technology Nuremberg (UTN), Nuremberg, Germany +1

  23. Maximum Likelihood Decoding of Quantum Error Correction Codes

    May 17, 2026Hanyan Cao, Ge Yan, Yuxuan Du +1Quantum Error CorrectionQuantum Error Correction Decoding

    1Science, Mathematics and Technology Cluster, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore · College of Computing and Data Science, Nanyang Technological University, Singapore, Singapore · School of Physical and Mathematical Sciences, Nanyang Technological University,2026 Singapore, Singapore

  24. Sparse Mamba Decoder for Quantum Error Correction: Efficient Defect-Centric Processing of Surface Code Syndromes

    May 16, 2026Samira Sayedsalehi, Nader Bagherzadeh, Maxim Shcherbakov +1Neural DecodingQuantum Error Correction

    Department of Electrical Engineering and Computer Science University of California, Irvine, CA 92697, USA

  25. Rethink the Role of Neural Decoders in Quantum Error Correction

    May 12, 2026Ge Yan, Shanchuan Li, Yuxuan DuNeural DecodingQuantum Error Correction

    College of Computing and Data Science, Nanyang Technological University, Singapore 639798, Singapore · Department of Electrical Engineering and Computer Science, Tokyo University of Agriculture & Technology, Koganei, Tokyo, 184-8588, Japan · School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 639798, Singapore

  26. Learning to Concatenate Quantum Codes

    Apr 16, 2026Nico Meyer, Christopher Mutschler, Dominik Seuß +2Quantum Error CorrectionError-Correcting Codes

    Fraunhofer IIS, Fraunhofer Institute for Integrated Circuits IIS, Nuremberg, Germany · Machine Learning and Positioning Systems Lab, University of Technology Nuremberg (UTN), Nuremberg, Germany · Center for Artificial Intelligence (CAIRO), Technical University of Applied Sciences Würzburg-Schweinfurt, Germany +1

  27. Scalable Neural Decoders for Practical Fault-Tolerant Quantum Computation

    Apr 9, 2026Andi Gu, J. Pablo Bonilla Ataides, Mikhail D. Lukin +1Quantum LDPC CodesQuantum Error Correction Decoding

    Department of Physics, Harvard University, Cambridge, MA 02138, USA · Harvard Quantum Initiative, Harvard University, Cambridge, MA 02138, USA

  28. Measurement-Free Ancilla Recycling via Blind Reset: A Cross-Platform Study on Superconducting and Trapped-Ion Processors

    Feb 24, 2026Sangkeum LeeQuantum Error CorrectionQuantum State Preparation

    Department of Computer Engineering, Hanbat National University, Daejeon 34158, Republic of Korea

  29. Neural Minimum Weight Perfect Matching for Quantum Error Codes

    Jan 1, 2026Yotam Peled, David Zenati, Eliya NachmaniNeural DecodingQuantum Error Correction

    School of Electrical and Computer Engineering (ECE), Ben-Gurion University, Beer Sheva, Israel.

  30. Evolutionary BP+OSD Decoding for Low-Latency Quantum Error Correction

    Dec 20, 2025Hee-Youl Kwak, Seong-Joon Park, Hyunwoo Jung +2Quantum Error Correction DecodingQuantum Error Correction

    Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, South Korea · Department of Electrical Engineering at Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, South Korea · School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea +1