World's First Quantum Error Correction Method Developed for Cryogenic Environments Enabling Operations between Logic Qubits: A Major Step Toward the Realization of Large-Scale Quantum Computers
July 11, 2022 Keio University
Professor Masaaki Kondo and Visiting Research Fellow Yosuke Ueno (regular affiliation: Graduate School of Information Science and Technology, The University of Tokyo) from the Keio University Faculty of Science and Technology; Yasunari Suzuki, a researcher at NTT Computer and Data Science Laboratories; Assistant Professor Masamitsu Tanaka of the Graduate School of Engineering, Nagoya University; Yutaka Tabuchi, a unit leader at RIKEN Center for Quantum Computing have developed the world's first quantum correction algorithm capable of decoding not only single logical qubits but also multiple interacting logical qubits. This is accomplished while satisfying the required levels of power consumption, implementation scale, speed, and error correction performance in cryogenic environments to control a practical large-scale quantum computer. Our results improve the scalability of superconducting quantum computers and fault-tolerance of superconducting qubits, which contribute to the development of fault-tolerant quantum computers.
The team's results were published at the 28th IEEE International Symposium on High-Performance Computer Architecture (HPCA-28) to be held from April 2, 2022.
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