Residual exchange coupling and simultaneous control in a triple dot device

ORAL

Abstract

High-fidelity operation of a large-scale quantum processor requires manipulating multiple

qubits using shared control lines while mitigating error arising from residual couplings

between neighboring qubits. In this work, we perform simultaneous driving measurements on

a silicon triple quantum dot device. In particular, we investigated the effect of weak exchange

coupling when single spins are simultaneously driven by high-power microwave pulses.

Further studies based on these triple-dot measurements could lead to improved control

schemes in larger spin-qubit arrays.

*Supported by ARO grant W911NF-23-1-0104

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Presenters

  • Heun Mo Yoo

    • University of California, Los Angeles

Authors

  • Heun Mo Yoo

    • University of California, Los Angeles

  • Tanner M Janda

    • University of California, Los Angeles

  • Connor Nasseraddin

    • University of California, Los Angeles

  • Victor Yu

    • University of California, Los Angeles
    • California State University, Los Angeles

  • Jason R Petta

    • University of California, Los Angeles