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Cooling a Mechanical Resonator with a Nitrogen-Vacancy Center Ensemble Using a Room Temperature Excited State Spin-Strain Interaction

zqyin 添加于 2016-5-24 09:48 | 1318 次阅读 | 0 个评论

作者
MacQuarrie ER, Otten M, Gray SK, Fuchs GD
摘要
We propose a protocol to dissipatively cool a room temperature mechanical resonator using a nitrogen-vacancy (NV) center ensemble. The spin ensemble is coupled to the resonator through its orbitally-averaged excited state, which has a spin-strain interaction that has not been previously characterized. We experimentally demonstrate that the spin-strain coupling in the excited state is $13.5pm0.5$ times stronger than the ground state spin-strain coupling. We then theoretically show that this interaction combined with a high-density spin ensemble enables the cooling of a mechanical resonator from room temperature to a fraction of its thermal phonon occupancy.
详细资料
- 关键词: quant-ph; cond-mat.mes-hall
- 文献种类: Manual Script
- 期卷页: 2016年
- 日期: 2016-5-24
- 发布方式: arXiv e-prints
- 备注:arXiv:1605.07131v1; Main text is 11 pages in preprint formatting, with 4 figures. Also included is 17 pages of supporting information including 7 supporting figures
学科领域自然科学 » 物理学
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