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Showing 1–8 of 8 results
Advanced filters: Author: Andrew Dunsworth Clear advanced filters
  • Ensuring high-fidelity quantum gates while increasing the number of qubits poses a great challenge. Here the authors present a scalable strategy for optimizing frequency trajectories as a form of error mitigation on a 68-qubit superconducting quantum processor, demonstrating high single- and two-qubit gate fidelities.

    • Paul V. Klimov
    • Andreas Bengtsson
    • Hartmut Neven
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8
  • Physical realizations of qubits are often vulnerable to leakage errors, where the system ends up outside the basis used to store quantum information. A leakage removal protocol can suppress the impact of leakage on quantum error-correcting codes.

    • Kevin C. Miao
    • Matt McEwen
    • Yu Chen
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 1780-1786
  • A study establishes a scalable approach to engineer and characterize a many-body-localized discrete time crystal phase on a superconducting quantum processor.

    • Xiao Mi
    • Matteo Ippoliti
    • Pedram Roushan
    ResearchOpen Access
    Nature
    Volume: 601, P: 531-536
  • It is hoped that quantum computers may be faster than classical ones at solving optimization problems. Here the authors implement a quantum optimization algorithm over 23 qubits but find more limited performance when an optimization problem structure does not match the underlying hardware.

    • Matthew P. Harrigan
    • Kevin J. Sung
    • Ryan Babbush
    Research
    Nature Physics
    Volume: 17, P: 332-336
  • Quantum supremacy is demonstrated using a programmable superconducting processor known as Sycamore, taking approximately 200 seconds to sample one instance of a quantum circuit a million times, which would take a state-of-the-art supercomputer around ten thousand years to compute.

    • Frank Arute
    • Kunal Arya
    • John M. Martinis
    Research
    Nature
    Volume: 574, P: 505-510