High-Fidelity Nuclear-Spin Control of Diamond NV Centers Using a Low-Dissipation On-Chip Driving Platform
POSTER
Abstract
High-fidelity control of nuclear spins coupled to nitrogen-vacancy (NV) centers in diamond is essential for quantum memories, robust sensing, and error-resilient quantum operations. In solid-state platforms, however, achievable fidelity is often limited not only by stochastic noise but also by coherent errors arising from drive-induced frequency shifts, thermal drift, and dissipation. Here, we investigate nuclear-spin control of NV centers using an integrated low-dissipation driving platform and present a quantitative fidelity analysis based on a microscopic error model. From numerical simulations, we identify dominant error channels affecting nuclear-spin operations and show that heating-mediated coherent phase errors constitute a major limitation under conventional driving conditions. Suppressing drive-induced dissipation significantly enhances frequency stability and improves nuclear-spin control fidelity toward the coherence-limited regime. These results establish general design principles for achieving stable, high-fidelity nuclear-spin manipulation in diamond-based quantum devices and are broadly applicable to solid-state spin systems requiring low-noise control.
*This work was supported by JSPS KAKENHI Grant Numbers JP23KK0267, JP23K26528, and JP24K21730, and by NRF of Korea grant funded by the Korean government (MSIT) (Grant Nos. RS-2024-00442710, RS-2025-02219034, and RS-2025-25454922).
Presenters
-
Masato Koga
- Institute of Science Tokyo