在二维光机械晶体中,高光子 - 声子对生成速率
Felix M Mayor1, Sultan Malik2, André G Primo2,3
1Department of Applied Physics and Ginzton Laboratory, Stanford University, Stanford, CA, USA. fmayor@stanford.edu.
Nature communications
|March 16, 2025
概括
我们开发了一个新的2D光机械晶体 (OMC) 用于量子信息处理,显著改善了热化,并使机械模式的基态冷却成为可能. 这推动了量子传感器技术的进步.
科学领域:
- 量子物理学的量子物理学
- 视觉机械学 视觉机械学
- 纳米技术 纳米技术
背景情况:
- 集成的光机械系统对于量子信息任务至关重要.
- 剩余光学加热限制了当前系统的性能.
研究的目的:
- 为了展示一种新的2D光机械晶体 (OMC) 几何.
- 为了改善热化,并实现机械模式的地面状态冷却.
- 探索量子信息处理和微波到光学转导中的应用.
主要方法:
- 制造具有增强热固的二维光机械晶体 (OMC).
- 机械模式频率 (7.4 GHz) 和光机械合速率 (g0/2π ≈ 880 kHz) 的表征.
- 从3K到nm = 0.32.3的声学模式实现了基态冷却.
主要成果:
- 与1D OMC相比,已经证明了8倍更好的热化.
- 实现了高光学质量因子 (Qopt = 2.4 × 105) 的光机械强合模式.
- 展示了10mK以下的地面状态操作 (nm <0.45),具有3MHz的重复率,产生光子-声子对.
结论:
- 新的2D OMC几何显著提高了热化和冷却能力.
- 这项工作为先进的微波到光学传感器提供了坚实的基础.
- 实现的纠速率超过目前的超导量子比特脱凝率,为量子技术铺平了道路.
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