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arXiv 1812.06752quant-ph
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腔光力学中弱力的光谱检测

Spectrometric detection of weak forces in cavity optomechanics

Yue-Hui Zhou, Qing-Shou Tan, Xi-Ming Fang, Jin-Feng Huang, Jie-Qiao Liao

摘要:

本文提出了一种光谱方法来检测腔光机系统中作用在动端镜上的经典弱力。该力改变了端镜的平衡位置,因此腔场的谐振频率取决于待检测的力。因此,可以通过分析光机械腔的单光子发射和散射光谱来推断力的大小。由于发射和散射过程比特征机械耗散快得多,因此在该光谱检测方案中机械热噪声的影响可以忽略不计。我们还扩展这种光谱方法,以检测单色振荡力,通过利用调制在相同的频率作为力的光机械耦合。

英文摘要:

We propose a spectrometric method to detect a classical weak force acting upon the moving end mirror in a cavity optomechanical system. The force changes the equilibrium position of the end mirror, and thus the resonance frequency of the cavity field depends on the force to be detected. As a result, the magnitude of the force can be inferred by analyzing the single-photon emission and scattering spectra of the optomechanical cavity. Since the emission and scattering processes are much faster than the characteristic mechanical dissipation, the influence of the mechanical thermal noise is negligible in this spectrometric detection scheme. We also extent this spectrometric method to detect a monochromatic oscillating force by utilizing an optomechanical coupling modulated at the same frequency as the force.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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