A Midscale Quantum Computer Based on Trapped Ions

ORAL

Abstract

In collaboration between universities and industrial partners, we have constructed an trapped ion-based quantum computer with the goal of realizing an error-corrected quantum bit and alternatively algorithms that do not need error correction. We report on the performance of our system, including fidelities of single-qubit and two-qubit gates and its operation with long and mixed-species ion chains. We present the building blocks of a logical qubit in our system, including qubit encoding, operation of logical gates, and stabilizer measurements, and discuss the progress towards implementing the full error correction algorithm as well as other applications.

*This work is supported by the ARO with funding from the IARPA LogiQ program, the NSF STAQ program, the DOE BES and HEP programs, the AFOSR MURI on Quantum Measurement and Verification, and the AFOSR MURI on Interactive Quantum Computation and Communication Protocols.

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Authors

  • Marko Cetina

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Laird Egan

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Andrew Risinger

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Daiwei Zhu

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Debopriyo Biswas

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Crystal Noel

    • Joint Quantum Institute, University of Maryland Department of Physics

  • Christopher Monroe

    • Joint Quantum Institute, University of Maryland Department of Physics and IonQ, Inc.