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Researchers demonstrated that by exploiting cusp singularity physics, the frequency and phase modulations produced by the Coriolis effect in chip-scale vibratory gyroscopes can be made to follow a cubic-root scaling law rather than a linear one. This non-linear enhancement amplifies the gyroscope's response to rotation near the singular operating point, resulting in measurable improvements in signal-to-noise ratio and measurement precision. The work applies concepts from singularity and exceptional-point physics to a practical microfabricated sensor platform.
Why it matters
More sensitive chip-scale gyroscopes could significantly improve inertial navigation in environments where GPS is unavailable, such as underground, underwater, or in space, and could benefit consumer electronics, autonomous vehicles, and precision timing systems.
Nature, Published online: 20 May 2026; doi:10.1038/s41586-026-10565-w
By using singularity physics to enable cubic-root scaling of frequency and phase modulations induced by the Coriolis effect to enhance the performance of chip-scale Coriolis vibratory gyroscopes, substantial improvements in signal-to-noise ratio and precision are demonstrated.
Source: Cusp-singularity-enhanced Coriolis effect for sensitive chip-scale gyroscopes