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Showing 1–7 of 7 results
Advanced filters: Author: Josh Mutus Clear advanced filters

  • Amorphous aluminum oxide tunnel junctions are important for cryogenic and room temperature devices. Here, the authors demonstrate the use of alternating-bias-assisted annealing for transforming and tuning transmon qubit junctions, where giant increases in excess of 70% in the room temperature resistance can be achieved.

    • David P. Pappas
    • Mark Field
    • Josh Y. Mutus
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-7

  • 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

  • To enhance the development of superior quantum circuits, the ability to detect defects accurately is crucial. The authors use broadband terahertz scanning near-field optical microscopy that enables the non-destructive and contactless identification of defective boundaries in nano-junctions employed in transmon qubits at an extremely precise nanoscale level.

    • Richard H. J. Kim
    • Joong M. Park
    • Jigang Wang
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-7