超糖蜜回归：从背景蒸汽中对中性原子进行全光学近共振激光冷却和捕获
Super-molasses returns: All optical near-resonance laser cooling and trapping of neutral atoms from background vapor
AI总结：
介绍一种替代激光阱，通过准直激光束简单几何结构，提供与速度和位置相关的恢复力形成冷原子云，无磁场下能产生与磁光阱相似原子数和密度，可冷却至低温，适用于多种应用。
AI中文摘要：
在过去四十年里，激光冷却和捕获的原子一直是原子物理学的主力军。主要方法是用途广泛的磁光阱。我们描述了一种替代激光阱，它涉及准直激光束的简单几何结构，能提供与速度和位置相关的恢复力，从而形成密集的冷原子云。该技术在无磁场情况下产生的原子数（>10^6）和密度（10^10原子/cm^3）与磁光阱相似。光束几何结构与传统亚多普勒冷却技术兼容，可将捕获的原子云冷却至<10 μK。我们通过直接从背景蒸汽中捕获^87Rb原子证明了该陷阱的有效性和稳健性，并对其基本原理进行了理论讨论。这个陷阱有许多独特的特性，使其非常适合量子传感、计时和计算应用，以及作为基础科学和计量学中的一种新工具。
英文摘要：
Laser cooled and trapped atoms have been the workhorse of atomic physics for the past four decades. The predominant method has been the highly versatile Magneto-Optical Trap. We describe an alternative laser trap involving a simple geometry of collimated laser beams that provides both a velocity and position dependent restoring force such that a dense cloud of cold atoms is formed. This technique produces similar atom number ($>10^6$) and density ($10^{10}$\,atoms/cm$^{3}$) to the Magneto-Optical Trap, albeit with \emph{no magnetic field}. The beam geometry is compatible with conventional sub-Doppler cooling techniques, allowing the trapped cloud to be cooled to $< 10~μ$K. We demonstrate the validity and robustness of the trap by capturing $^{87}$Rb atoms directly from the background vapor and provide a theoretical discussion of the underlying principles. This trap has many unique properties that make it highly suitable for quantum sensing, timing, and computing applications as well as a new tool in fundamental science and metrology.
