PreprintarXiv licencearXiv
Effects of residual exchange coupling on simultaneously driven spin qubits
Abstract
Exchange coupling and microwave drives are widely used control mechanisms for spin qubits. However, the influence of exchange coupling on microwave-driven spin dynamics is not fully understood. We report simultaneous drive measurements of two spin qubits as a function of exchange coupling and drive power. When the Rabi frequency exceeds exchange, we observe a beating pattern in the Rabi oscillations. In the opposite limit, two exchange-split patterns emerge in the Rabi chevrons. We find that these exchange-induced effects are suppressed when the difference in the Rabi frequencies exceeds the exchange coupling. A theoretical model is developed that reproduces the main features in our data.
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BibTeX
@misc{yoo2026effects,
title = {{Effects of residual exchange coupling on simultaneously driven spin qubits}},
author = {Heun Mo Yoo and Tanner M. Janda and Victor Yu and Michael J. Gullans and Adam R. Mills and Jason R. Petta},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.15751},
eprint = {2609.15751},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.15751},
}
RIS
TY - UNPB
TI - Effects of residual exchange coupling on simultaneously driven spin qubits
AU - Heun Mo Yoo
AU - Tanner M. Janda
AU - Victor Yu
AU - Michael J. Gullans
AU - Adam R. Mills
AU - Jason R. Petta
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2609.15751
UR - https://arxiv.org/abs/2609.15751
AB - Exchange coupling and microwave drives are widely used control mechanisms for spin qubits. However, the influence of exchange coupling on microwave-driven spin dynamics is not fully understood. We report simultaneous drive measurements of two spin qubits as a function of exchange coupling and drive power. When the Rabi frequency exceeds exchange, we observe a beating pattern in the Rabi oscillations. In the opposite limit, two exchange-split patterns emerge in the Rabi chevrons. We find that these exchange-induced effects are suppressed when the difference in the Rabi frequencies exceeds the exchange coupling. A theoretical model is developed that reproduces the main features in our data.
ER -