Stable and High-Precision 3D Positioning via Tunable Composite-Dimensional Hong-Ou-Mandel Interference

• URL: http://arxiv.org/abs/2504.10843v1
• Date: Tue, 15 Apr 2025 04:01:22 GMT
• Title: Stable and High-Precision 3D Positioning via Tunable Composite-Dimensional Hong-Ou-Mandel Interference
• Authors: Yongqiang Li, Hongfeng Liu, Dawei Lu, Changliang Ren,
• Abstract summary: We propose a stable and high-precision 3D quantum positioning scheme based on Hong-Ou-Mandel interference.<n>Our method achieves ultra-precise and reliable 3D positioning, even with a limited number of detected photons.
• Score: 2.416380165491314
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a stable and high-precision three-dimensional (3D) quantum positioning scheme based on Hong-Ou-Mandel interference. While previous studies have explored HOM interference in quantum metrology, they were mostly limited to one-dimensional scenarios, whereas real-world applications require full 3D spatial resolution. Our approach not only generalizes HOM positioning to 3D-achieving ultimate sensitivity as defined by the quantum Cramer-Rao bound-but also stabilizes estimation accuracy through simple polarization tuning, ensuring that the Fisher information remains independent of the estimated parameters. Theoretical analysis and simulations demonstrate that our method achieves ultra-precise and reliable 3D positioning, even with a limited number of detected photons.

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