新科学想法 学术文库 学术文献 浏览文献

Multimode optomechanical system in the quantum regime

zqyin 添加于 2016-5-24 09:49 | 1193 次阅读 | 0 个评论
  •  作 者

    Nielsen WHP, Tsaturyan Y, Møller CB, Polzik ES, Schliesser A
  •  摘 要

    We realise a simple and robust optomechanical system with a multitude of long-lived ($Q>10^7$) mechanical modes in a phononic-bandgap shielded membrane resonator. An optical mode of a compact Fabry-Perot resonator detects these modes\' motion with a measurement rate ($96~mathrm{kHz}$) that exceeds the mechanical decoherence rates already at moderate cryogenic temperatures ($10,mathrm{K}$). Reaching this quantum regime entails, i.~a., quantum measurement backaction exceeding thermal forces, and thus detectable optomechanical quantum correlations. In particular, we observe ponderomotive squeezing of the output light mediated by a multitude of mechanical resonator modes, with quantum noise suppression up to -2.4 dB (-3.6 dB if corrected for detection losses) and bandwidths $lesssim 90,mathrm{ kHz}$. The multi-mode nature of the employed membrane and Fabry-Perot resonators lends itself to hybrid entanglement schemes involving multiple electromagnetic, mechanical, and spin degrees of freedom.
  •  详细资料

    • 关键词: quant-ph; cond-mat.mes-hall; physics.optics
    • 文献种类: Manual Script
    • 期卷页: 2016
    • 日期: 2016-5-21
    • 发布方式: arXiv e-prints
    • 备注:arXiv:1605.06541v1; 19 pages, 9 figures
  • 学科领域 自然科学 » 物理学

  • 相关链接  URL 

  •  zqyin 的文献笔记  订阅


管理选项: 导出文献|

评论(0 人)

facelist doodle 涂鸦板

Copyright;  © 新科学想法 2016-2017   浙公网安备 33010202000686号   ( 浙ICP备09035230号-1 )