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Demonstration of quantum volume 64 on a superconducting quantum computing system

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arxiv 2008.08571 v2 pith:RAEEDEFO submitted 2020-08-19 quant-ph

Petar Jurcevic , Ali Javadi-Abhari , Lev S. Bishop , Isaac Lauer , Daniela F. Bogorin , Markus Brink , Lauren Capelluto , Oktay Günlük
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Toshinari Itoko Naoki Kanazawa Abhinav Kandala George A. Keefe Kevin Krsulich William Landers Eric P. Lewandowski Douglas T. McClure Giacomo Nannicini Adinath Narasgond Hasan M. Nayfeh Emily Pritchett Mary Beth Rothwell Srikanth Srinivasan Neereja Sundaresan Cindy Wang Ken X. Wei Christopher J. Wood Jeng-Bang Yau Eric J. Zhang Oliver E. Dial Jerry M. Chow Jay M. Gambetta
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keywords quantumvolumecomputingfidelitieshardwaresoftwaresuperconductingsystems
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We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume, with a combination of dynamical decoupling, compiler optimizations, shorter two-qubit gates, and excited state promoted readout. This result shows that the path to larger quantum volume systems requires the simultaneous increase of coherence, control gate fidelities, measurement fidelities, and smarter software which takes into account hardware details, thereby demonstrating the need to continue to co-design the software and hardware stack for the foreseeable future.

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Cited by 1 Pith paper

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  1. STABSim: A Parallelized Clifford Simulator with Features Beyond Direct Simulation

    quant-ph 2025-07 conditional novelty 6.0 of 10

    STABSim is a GPU-accelerated Clifford tableau simulator with new measurement handling, exact T1/T2 noise sampling in a common regime, and a fast Clifford+T to PBC transpiler.

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