Trapping an Atomic Ion using Time-Division Multiplexed Digital-to-Analog Converters

• URL: http://arxiv.org/abs/2508.04093v2
• Date: Tue, 14 Oct 2025 08:12:26 GMT
• Title: Trapping an Atomic Ion using Time-Division Multiplexed Digital-to-Analog Converters
• Abstract summary: TDM-based voltage control system is applied to a surface-electrode trap, where we successfully trap a single $40mathrmCa+$ ion.<n>This approach offers a resource-efficient and scalable solution for advanced quantum computing systems based on trapped ions.
• Score: 0.29316801942271303
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Independent control of numerous electrodes in quantum charge-coupled device architectures presents a significant challenge for wiring and hardware scalability. To address this issue, we demonstrate a voltage control method based on time-division multiplexing (TDM). This approach utilizes a single high-update-rate digital-to-analog converter (DAC) to sequentially generate control signals for multiple electrodes, thereby reducing both the number of required DACs and associated wiring. We experimentally validate this concept by developing a 10-channel system that operates with only two DACs. The developed TDM-based voltage control system is applied to a surface-electrode trap, where we successfully trap a single $^{40}\mathrm{Ca}^+$ ion and demonstrate a simple ion transport primitive. This approach offers a resource-efficient and scalable solution for advanced quantum computing systems based on trapped ions.

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