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Hyperfine-Enhanced Gyroscope Based on Solid-State Spins
Guoqing Wang1,2,3, Minh-Thi Nguyen2,3, Paola Cappellaro1,2,3
1Department of Nuclear Science and Engineering, <a href="https://ror.org/042nb2s44">Massachusetts Institute of Technology</a>, Cambridge, Massachusetts 02139, USA.
Physical Review Letters
|October 25, 2024
Summary
This study introduces a novel solid-state gyroscope using electronuclear spin systems for enhanced rotation sensing. The new protocol measures relative spin rotation, overcoming dephasing limitations for precise measurements.
Area of Science:
- Quantum sensing
- Solid-state physics
- Spin dynamics
Background:
- Electronuclear spin systems offer high sensitivity and stability for rotation sensing.
- Conventional spin-based gyroscopes are limited by spin dephasing, affecting accuracy.
- Industrial applications require compact and robust rotation sensing technologies.
Purpose of the Study:
- To propose a novel gyroscope protocol robust against spin dephasing.
- To enhance rotation rate sensitivity using hyperfine coupling in a two-spin system.
- To enable precise measurement of slow rotations and fundamental physics exploration.
Main Methods:
- Utilizing a two-spin system with one spin coupled to the host material and another isolated.
- Measuring the relative rotation angle between the two spins from their population states.
- Leveraging hyperfine coupling to amplify the relative rotation rate.
Main Results:
- The proposed protocol is robust against spin dephasing, unlike conventional methods.
- Hyperfine coupling enhances the relative rotation rate by over an order of magnitude.
- The gyroscope's sensitivity is limited by spin system lifetime, offering a broad dynamic range.
Conclusions:
- A novel, dephasing-robust solid-state gyroscope protocol is demonstrated.
- Enhanced sensitivity is achieved through hyperfine coupling in a two-spin system.
- This technology enables precise slow rotation measurements and fundamental physics research.
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