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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Presenters

  • Masato Koga

    • Institute of Science Tokyo

Authors

  • Masato Koga

    • Institute of Science Tokyo
  • Harim Lim

  • Eunsang Lee

  • Eikichi Kimura

    • Institute of Science Tokyo
  • Ryo Matsumoto

  • Yoshihiko Takano

    • National Institute for Materials Science
  • Junghyun Lee

  • Keigo Arai