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Entangling the motion of two optically trapped objects via time-modulated driving fields

zqyin 添加于 2014-8-18 15:48 | 1274 次阅读 | 0 个评论

作者
Abdi M, Hartmann MJ
摘要
We study entanglement of the motional degrees of freedom of two tethered and optically trapped microdisks inside a single cavity. By properly choosing the position of the trapped objects in the optical cavity and driving proper modes of the cavity it is possible to equip the system with linear and quadratic optomechanical couplings. We show that a parametric coupling between the fundamental vibrational modes of two tethered mircodiscs can be generated via a time modulated input laser. For a proper choice of the modulation frequency, this mechanism can drive the motion of the microdisks into an inseparable state in the long time limit via a two-mode squeezing process. We numerically confirm the performance of our scheme for current technology and briefly discuss an experimental setup which can be employed for detecting this entanglement by employing the quadratic coupling. We also comment on the perspectives for generating such entanglement between the oscillations of optically levitated nanospheres.
详细资料
- 关键词: quant-ph
- 文献种类: Manual Script
- 期卷页: 2014年
- 日期: 2014-8-15
- 发布方式: arXiv e-prints
- 备注:arXiv:1408.3423v1; 9 pages, 3 figures
学科领域自然科学 » 物理学
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