论文标题
双重状态依赖性的无序潜在的Anderson定位超低原子的定位
Bichromatic state-dependent disordered potential for Anderson localization of ultracold atoms
论文作者
论文摘要
以明确的能量在无序电位上加载超速原子的能力是研究量子运输，尤其是安德森定位的关键工具。在本文中，我们提出了一种新的方法，可以通过将原子 - 玻色 - 因斯坦冷凝物从疾病不敏感的状态转移到敏感状态的原子原子的RF转移来实现这一目标。它基于双重激光斑点图案，该模式由两个激光器产生，其频率被选中，以便其轻轴在第一个状态下相互取消，并在第二个状态下添加。此外，对疾病敏感状态的自发散射速率足够低，可以在该状态下长期观察到量子运输的时间。我们从理论上和实验研究所产生电位的特征。
The ability to load ultracold atoms at a well-defined energy in a disordered potential is a crucial tool to study quantum transport, and in particular Anderson localization. In this paper, we present a new method for achieving that goal by rf transfer of atoms of an atomic Bose-Einstein condensate from a disorder insensitive state to a disorder sensitive state. It is based on a bichromatic laser speckle pattern, produced by two lasers whose frequencies are chosen so that their light-shifts cancel each other in the first state and add-up in the second state. Moreover, the spontaneous scattering rate in the disorder-sensitive state is low enough to allow for long observation times of quantum transport in that state. We theoretically and experimentally study the characteristics of the resulting potential.
