Ultra-sensitive integrated circuit sensors based on high-order nonHermitian topological physics

• URL: http://arxiv.org/abs/2501.11348v2
• Date: Tue, 11 Feb 2025 10:21:35 GMT
• Title: Ultra-sensitive integrated circuit sensors based on high-order nonHermitian topological physics
• Authors: Wenyuan Deng, Wei Zhu, Tian Chen, Houjun Sun, Xiangdong Zhang,
• Abstract summary: The frequency shift induced by perturbations for these sensors can show an exponential growth with respect to the size of the device. The sensitivity of systems not only less than 0.001fF has been experimentally verified, they are also robust against disorders.
• Score: 7.956560058549651
• License:
• Abstract: High-precision sensors are of fundamental importance in modern society and technology.Although numerous sensors have been developed, obtaining sensors with higher levels of sensitivity and stronger robustness has always been expected. Here, we propose theoretically and demonstrate experimentally a novel class of sensors with superior performances based on exotic properties of highorder non-Hermitian topological physics. The frequency shift induced by perturbations for these sensors can show an exponential growth with respect to the size of the device, which can well beyond the limitations of conventional sensors. The fully integrated circuit chips have been designed and fabricated in a standard 65nm complementary metal oxide semiconductor process technology. The sensitivity of systems not only less than 0.001fF has been experimentally verified, they are also robust against disorders.Our proposed ultra-sensitive integrated circuit sensors can possess a wide range of applications in various fields and show an exciting prospect for next-generation sensing technologies.

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