Residual exchange coupling and simultaneous control in a triple dot device
Oral-In-person
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.
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.
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Presenters
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Heun Mo Yoo
- University of California, Santa Barbara