Demonstrating RFSoC-based Control of a Fully Connected Exchange-Only Qubit
Abstract
Semiconductor triple-quantum dots (TQDs) are a promising platform for scalable quantum information processing, but the community has so far lacked access to affordable and flexible high-speed control electronics. SpinQICK, an open-source spin qubit-control package built on the Xilinx Radio Frequency System-on-Chip (RFSoC), directly addresses this gap by leveraging the high sampling-rate signal generation and advanced digital signal processing (DSP) capabilities of the Quantum Instrumentation Control Kit (QICK) to enable precise time-domain voltage control and readout of semiconductor spin qubits. In this paper, we use spinQICK to demonstrate coherent control, state preparation, and readout of a fully connected triangular exchange-only device. We also introduce and experimentally verify a novel dynamical decoupling (DD) sequence enabled by the triangular TQD and leverage its unique decoupling properties to characterize electrical noise. These results establish spinQICK as a low-cost, flexible platform for semiconductor spin qubit control and provide a pathway for hardware optimization through qubit-level noise diagnostics.
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BibTeX
@misc{wessels2026demonstrating,
title = {{Demonstrating RFSoC-based Control of a Fully Connected Exchange-Only Qubit}},
author = {Abigail L. Wessels and M. Garrett Bimstefer and Joseph D. Broz and Alen Senanian and Andrew E. Oriani},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.31998},
eprint = {2610.31998},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.31998},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Demonstrating RFSoC-based Control of a Fully Connected Exchange-Only Qubit
AU - Abigail L. Wessels
AU - M. Garrett Bimstefer
AU - Joseph D. Broz
AU - Alen Senanian
AU - Andrew E. Oriani
PY - 2026
DA - 2026/10/22
PB - arXiv
DO - 10.48550/arxiv.2610.31998
UR - https://arxiv.org/abs/2610.31998
AB - Semiconductor triple-quantum dots (TQDs) are a promising platform for scalable quantum information processing, but the community has so far lacked access to affordable and flexible high-speed control electronics. SpinQICK, an open-source spin qubit-control package built on the Xilinx Radio Frequency System-on-Chip (RFSoC), directly addresses this gap by leveraging the high sampling-rate signal generation and advanced digital signal processing (DSP) capabilities of the Quantum Instrumentation Control Kit (QICK) to enable precise time-domain voltage control and readout of semiconductor spin qubits. In this paper, we use spinQICK to demonstrate coherent control, state preparation, and readout of a fully connected triangular exchange-only device. We also introduce and experimentally verify a novel dynamical decoupling (DD) sequence enabled by the triangular TQD and leverage its unique decoupling properties to characterize electrical noise. These results establish spinQICK as a low-cost, flexible platform for semiconductor spin qubit control and provide a pathway for hardware optimization through qubit-level noise diagnostics.
ER -