Abstract

Probing the boundary between classical and quantum mechanics has been one of the central themes in modern physics. Recently, experiments to precisely measure the force acting on milligram scale oscillators with optical cavities are attracting interest as promising tools to test quantum mechanics, decoherence mechanisms, and gravitational physics. In this paper, we review the present status of experiments using milligram scale optomechanical systems. We compare the feasibility of reaching the quantum regime with a pendulum, torsion pendulum, and optically levitated mirror. Considerations for designing a high Q pendulum, condition for torsion pendulums to have better force sensitivity than pendulums, and constraints in designing optical levitation of a mirror are presented.

Graphical abstract

中文翻译：

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毫克级光学机械系统的量子感测

摘要

探究经典力学和量子力学之间的边界一直是现代物理学的中心主题之一。近年来，作为测量量子力学，退相干机制和引力物理学的有前途的工具，精确测量作用于具有光腔的毫克级振荡器上的力的实验引起了人们的兴趣。在本文中，我们回顾了使用毫克级光机械系统进行实验的现状。我们比较了摆，扭转摆和光学反射镜达到量子状态的可行性。提出了设计高Q摆的考虑因素，扭转摆比摆具有更好的力敏性的条件，以及设计反射镜的光学悬浮的限制条件。

图形概要