arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.3595physics.opticsquant-ph
收藏

单个带电纳米粒子的腔冷却

Cavity cooling a single charged nanoparticle

J. Millen, P. Z. G. Fonseca, T. Mavrogordatos, T. S. Monteiro, P. F. Barker

摘要:

激光冷却技术的发展与在电磁场中捕获原子和离子的能力相结合,已经彻底改变了原子和光学物理学,导致了原子钟、高分辨率光谱学以及量子模拟和处理中的应用的发展。然而,复杂系统,例如大分子和纳米颗粒,缺乏激光冷却所需的简单内部共振。在这里,我们报告的混合方案,使用外部谐振的光学腔,结合射频(RF)领域,捕捉和冷却一个单一的带电纳米粒子。RF Paul阱允许在真空中进行限制,避免单独由光场引起的不稳定性,并且关键地积极参与冷却过程。该系统为冷却和捕获广泛的复杂带电粒子提供了巨大的希望,其应用于精密力传感、质谱、大质量尺度下的量子力学探索以及创建大量子叠加的可能性。

英文摘要:

The development of laser cooling coupled with the ability to trap atoms and ions in electromagnetic fields, has revolutionised atomic and optical physics, leading to the development of atomic clocks, high-resolution spectroscopy and applications in quantum simulation and processing. However, complex systems, such as large molecules and nanoparticles, lack the simple internal resonances required for laser cooling. Here we report on a hybrid scheme that uses the external resonance of an optical cavity, combined with radio frequency (RF) fields, to trap and cool a single charged nanoparticle. An RF Paul trap allows confinement in vacuum, avoiding instabilities that arise from optical fields alone, and crucially actively participates in the cooling process. This system offers great promise for cooling and trapping a wide range of complex charged particles with applications in precision force sensing, mass spectrometry, exploration of quantum mechanics at large mass scales and the possibility of creating large quantum superpositions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑