文献类型：期刊文献

英文题名：Enhancement of gravity estimation in modulated optomechanics

作者：Feng, Ling-Juan[1];Lin, Gong-Wei[1];Niu, Yue-Ping[1];Gong, Shang-Qing[1]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2020

卷号：460

外文期刊名：OPTICS COMMUNICATIONS

收录：;EI(收录号：20200408070978);WOS:【SCI-EXPANDED(收录号:WOS:000514642700054)】；

基金：This work was supported by the National Natural Sciences Foundation of China (Grants Nos. 11674094, 11774089, 11874146, and 11981260012) and Natural Science Foundation of Shanghai, China (Grant Nos. 17ZR1442700, 18DZ2252400, and 18ZR1410500).

语种：英文

外文关键词：Acceleration

摘要：We present an efficient method for quantum estimation of gravitational acceleration in a modulated optomechanical system. We use the squeezed mechanical mode, which could potentially enhance the optomechanical interaction between cavity field and mechanical oscillation into the strong-coupling regime. We show that the strong optomechanical coupling can significantly improve the measurement sensitivity of gravitational acceleration. The proposed scheme can provide a platform for further investigations on precision measurement of gravitational acceleration.