AI 中文总结
提出振动屏蔽方法，可通过外场独立调节双组分超冷极性分子混合物的相互作用，为实验实现可调量子混合物提供新途径。
AI 中文摘要
我们提出一种实现稳定、可调双组分超冷极性分子量子混合物的方法。首先，我们证明处于两个不同振转态的一对极性分子会表现出排斥相互作用，从而无需任何外场即可产生碰撞屏蔽，我们将其称为“振动屏蔽”。这种组分间相互作用可通过外静电场或微波场调节，后者可同时稳定双组分体混合物中的组分间和组分内相互作用。此外，我们还表明，两束微波场可独立调节各组分的相互作用。因此，我们的发现为利用极性分子实现可调量子混合物的实验铺平了道路，类似于双组分原子量子气体中的可调磁费什巴赫共振。
英文摘要
We propose a method to realize stable, tunable two-component quantum mixtures of ultracold polar molecules. First, we show that a pair of polar molecules in two distinct rovibrational states exhibits a repulsive interaction, thereby leading to collisional shielding without requiring any external field. We refer to this as "vibrational shielding". This intercomponent interaction is tunable by an external static electric or a microwave field, with the latter stabilizing both inter- and intracomponent interactions in a two-component bulk mixture. Additionally, we show that two microwave fields can independently tune the interactions of the individual components. Our findings thus open the door to the experimental realization of tunable quantum mixtures using polar molecules, analogous to tunable magnetic Feshbach resonances in two-component atomic quantum gases.
Comments9 pages, 7 figures, and 1 table
