AI 中文总结
研究超冷极性分子间转动-振动范德瓦尔斯相互作用,利用其强相互作用实现分子费米混合物蒸发冷却,无需外部场屏蔽,与微波屏蔽兼容,可用于多种量子相关研究及稳定光晶格中的费米子分子等。
AI 中文摘要
我们描述了超冷极性分子之间的转动-振动范德瓦尔斯相互作用。这种相互作用很强,会导致快速弹性碰撞并使碰撞损失受到数量级抑制。这使得不同转动-振动态的分子费米混合物能够进行蒸发冷却,无需外部场的主动屏蔽。该方案与微波屏蔽兼容,能实现可控的状态依赖相互作用,为量子模拟和杂质物理带来新机遇,还可用于稳定光晶格中的费米子分子等。
英文摘要
We describe the ro-vibrational van der Waals interaction between ultracold polar molecules. This interaction is strong, leading to fast elastic collisions and orders of magnitude suppression of collisional loss. This enables evaporative cooling of Fermi mixtures of molecules in different ro-vibrational states, without active shielding by applying external fields. The scheme is compatible with microwave shielding, where it enables controlled state dependent interactions, opening up new opportunities for quantum simulation and impurity physics. The interaction can also be used to stabilize fermionic molecules in optical lattices, to control interactions in synthetic dimensions, for enhanced tweezer loading, and direct infrared shielding.