Addressing trapped ions with semiconductor optical waveguides

Clayton Craft; Paul M. Alsing; Nicholas J. Barton; Andrew Brownell; Venkatesh Deenadayalan; Mike L. Fanto; Gregory A. Howland; David Hucul; Andrew Klug; Michael Macalik; Evan Manfreda-Schulz; Garrett Percevault; Nikola Porto; Stefan F. Preble; Anthony J. Rizzo; Kenneth Scalzi; James Schneeloch; Erin Sheridan; Vijay S. S. Sundaram; Amos M. Smith; Zachary S. Smith; Christopher C. Tison; Kathy-Anne B. Soderberg

doi:10.1117/12.3019187

10 June 2024 Addressing trapped ions with semiconductor optical waveguides

Clayton Craft, Paul M. Alsing, Nicholas J. Barton, Andrew Brownell, Venkatesh Deenadayalan, Mike L. Fanto, Gregory A. Howland, David Hucul, Andrew Klug, Michael Macalik, Evan Manfreda-Schulz, Garrett Percevault, Nikola Porto, Stefan F. Preble, Anthony J. Rizzo, Kenneth Scalzi, James Schneeloch, Erin Sheridan, Vijay S. S. Sundaram, Amos M. Smith, Zachary S. Smith, Christopher C. Tison, Kathy-Anne B. Soderberg

Author Affiliations +

Proceedings Volume PC13028, Quantum Information Science, Sensing, and Computation XVI; PC1302805 (2024) https://doi.org/10.1117/12.3019187
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Quantum computing (QC) is theorized to solve certain important problems much faster than classical computers. The current state of QC, the noisy intermediate-scale quantum (NISQ) era, is limited in the scope of problems it can solve, largely due to the quantity of reliable qubits available to universal quantum operations. And while all available quantum computing systems have their advantages, ion-based systems have been shown to be a reliable option with low infidelity and a capability for universal gating procedure. These advantages are dependent on achieving low crosstalk when addressing ions, a vital challenge for this QC system, particularly when using only bulk optic systems. Here we show a microfabricated planar waveguide which can selectively interact in free space with 8 trapped Ba+ ions. This performance meets or exceeds that of similar waveguides couple to trapped ion systems and shows a reliable method to selectively interact with ions bound by a Paul Trap using imaged waveguide outputs.

Conference Presentation

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Clayton Craft, Paul M. Alsing, Nicholas J. Barton, Andrew Brownell, Venkatesh Deenadayalan, Mike L. Fanto, Gregory A. Howland, David Hucul, Andrew Klug, Michael Macalik, Evan Manfreda-Schulz, Garrett Percevault, Nikola Porto, Stefan F. Preble, Anthony J. Rizzo, Kenneth Scalzi, James Schneeloch, Erin Sheridan, Vijay S. S. Sundaram, Amos M. Smith, Zachary S. Smith, Christopher C. Tison, and Kathy-Anne B. Soderberg "Addressing trapped ions with semiconductor optical waveguides", Proc. SPIE PC13028, Quantum Information Science, Sensing, and Computation XVI, PC1302805 (10 June 2024); https://doi.org/10.1117/12.3019187

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