Long lifetimes and effective isolation of ions in optical and electrostatic traps
Long lifetimes and effective isolation of ions in optical and electrostatic traps
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DOI：
10.1038/s41566-017-0030-2
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发表时间：
2017-11-01
期刊：
影响因子：
35
通讯作者：
Schaetz, Tobias
中科院分区：
文献类型：
--
作者：
Lambrecht, Alexander;Schmidt, Julian;Schaetz, Tobias
长的捕获时间，以及低的加热和退相干速率，基本上将单个粒子与环境隔离，是在量子水平上控制这些粒子的关键因素。在这里，我们证明了离子的光学捕获和隔离可以在与中性原子相当的水平上进行，与以前的工作相比，它们的寿命提高了三个数量级（2，3），并测量了总加热速率的上限。实现与环境的隔离为离子和原子在以前无法达到的碰撞能量下的超冷相互作用开辟了一条新的途径（4-6），并可能允许在各种通用光学捕获几何结构（7）中使用离子和原子进行新型实验量子模拟，例如双色陷阱或高维光学晶格（8，9）。
Long trapping times, as well as low heating and decoherence rates, essentially isolating individual particles from the environment, are crucial ingredients for controlling these particles on the quantum level(1). Here, we demonstrate that optical trapping and isolation of ions can be performed on a level comparable to neutral atoms, boosting their lifetime by three orders of magnitude compared to previous work(2,3), and measure an upper bound of the total heating rate. The achieved isolation from the environment opens a path to a novel regime of ultra-cold interactions of ions and atoms at previously inaccessible collision energies(4-6) and may permit a novel class of experimental quantum simulations with ions and atoms in a variety of versatile optical trapping geometries(7), for example, bichromatic traps or higher-dimensional optical lattices(8,9).