Quantum gyroscope based on the cavity magnomechanical system

• URL: http://arxiv.org/abs/2505.08466v2
• Date: Sat, 17 May 2025 05:59:47 GMT
• Title: Quantum gyroscope based on the cavity magnomechanical system
• Authors: Zhe-Qi Yang, Lei Chen, Yu-Rong Lin, Wei Qin, Zhi-Rong Zhong,
• Abstract summary: High-precision rotational angle measurement in noise-prone environments holds critical impor tance in aerospace engineering, military navigation, and related domains.<n>We propose a quantum gyroscope scheme based on a cavity magnomechanical system, which enables high precision rotation angle detection by harnessing hybrid light-magnon interactions.
• Score: 6.101088546721012
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: High-precision rotational angle measurement in noise-prone environments holds critical impor tance in aerospace engineering, military navigation, and related domains. In this paper, we propose a quantum gyroscope scheme based on a cavity magnomechanical system, which enables high precision rotation angle detection by harnessing hybrid light-magnon interactions. Central to this framework is the employment of a two-mode squeezed coherent state, generated via parametric coupling of dual quantized optical fields with collective spin excitations (magnons), serving as the quantum metrological probe. We demonstrate that this scheme can significantly reduce quantum noise to levels far below the shot-noise limit. Furthermore, in the non-Markovian case, the per formance of the quantum gyroscope in a dissipative environment does not deteriorate over time, provided that the environmental spectral density satisfies certain conditions. These findings provide critical insights for advancing miniaturized quantum gyroscopes with sub-microradian precision, addressing long-standing challenges in inertial navigation systems under strong ambient noise.

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