Botter Thierry, Brooks Daniel W C, Schreppler Sydney, Brahms Nathan, Stamper-Kurn Dan M
Department of Physics, University of California, Berkeley, California 94720, USA.
Department of Physics, University of California, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
Phys Rev Lett. 2013 Apr 12;110(15):153001. doi: 10.1103/PhysRevLett.110.153001. Epub 2013 Apr 8.
We create an ultracold-atom-based cavity optomechanical system in which the center-of-mass modes of motion of as many as six distinguishable atomic ensembles are prepared and optically detected near their ground states. We demonstrate that the collective motional state of one atomic ensemble can be selectively addressed while preserving neighboring ensembles near their ground states to better than 95% per excitation quantum. We also show that our system offers nanometer-scale spatial resolution of each atomic ensemble via optomechanical imaging. This technique enables the in situ parallel sensing of potential landscapes, a capability relevant to active research areas of atomic physics and force-field detection in optomechanics.
我们创建了一个基于超冷原子的腔光机械系统，其中多达六个可区分的原子系综的质心运动模式在其基态附近被制备并进行光学检测。我们证明，一个原子系综的集体运动状态可以被选择性地操控，同时使相邻系综在其基态附近的保留率高于每个激发量子95%。我们还表明，我们的系统通过光机械成像提供每个原子系综的纳米级空间分辨率。这种技术能够原位并行传感势能景观，这一能力与原子物理学的活跃研究领域以及光机械中的力场检测相关。
