Study of fundamental limits of solid-state nuclear spin gyroscopy based on NV centers in diamond

• Applicant: Professor Dr. Jörg Wrachtrup
• Subject Area: Experimental Condensed Matter Physics ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: from 2020 to 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 445397527

• Final Report Year: 2025

Final Report Abstract

The precise detection of gyrotation is a challenging problem in basic research and of great importance for applications in the field of inertial navigation for autonomous technical systems. The observation of a precession of a nuclear spin ensemble is a promising method for the precise measurement of rotation. This method was to be demonstrated in the project using the nitrogen-vacancy (NV) centre in diamond. During the course of the project, three main research objectives were pursued: 1. The development of diamond materials with exceptional properties to enhance the coherence of sensor spins; 2. The advancement of novel techniques for spin readout and control; and 3. The creation of bi-species nuclear spin ensembles to test systematic shift correction schemes. All objectives were successfully achieved.

Publications

• High-resolution nanoscale NMR for arbitrary magnetic fields. Communications Physics, 6(1).
  Meinel, Jonas; Kwon, MinSik; Maier, Rouven; Dasari, Durga; Sumiya, Hitoshi; Onoda, Shinobu; Isoya, Junichi; Vorobyov, Vadim & Wrachtrup, Jörg
  
• Qudit-Based Spectroscopy for Measurement and Control of Nuclear-Spin Qubits in Silicon Carbide. Physical Review Letters, 132(9).
  Hesselmeier, Erik; Kuna, Pierre; Takács, István; Ivády, Viktor; Knolle, Wolfgang; Son, Nguyen Tien; Ghezellou, Misagh; Ul-Hassan, Jawad; Dasari, Durga; Kaiser, Florian; Vorobyov, Vadim & Wrachtrup, Jörg