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.
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· 120Presenters
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Masato Koga
- Institute of Science Tokyo