Quantum Metrology of Newton's Constant with Levitated Mechanical Systems

• URL: http://arxiv.org/abs/2503.16215v1
• Date: Thu, 20 Mar 2025 15:08:04 GMT
• Title: Quantum Metrology of Newton's Constant with Levitated Mechanical Systems
• Authors: Francis J. Headley, Alessio Belenchia, Mauro Paternostro, Daniel Braun,
• Abstract summary: Levitated mechanical systems are attracting growing attention for their promising applications in sensing.<n>Our scheme promises to beat the current standard by several orders of magnitude.
• Score: 0.8437187555622164
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Newton's constant is the least well-measured among the fundamental constants of Nature, and, indeed, its accurate measurement has long served an experimental challenge. Levitated mechanical systems are attracting growing attention for their promising applications in sensing and as an experimental platform for exploring the intersection between quantum physics and gravitation. Here we propose a mechanical interferometric scheme of interacting levitated oscillators for the accurate estimation of Newton's constant. Our scheme promises to beat the current standard by several orders of magnitude.

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