报告题目：Effective potential and superfluidity of microwave-dressed polar molecules

报  告 人：易俗研究员（国家杰青），中国科学院理论物理研究所

研究方向：超冷原子分子物理、量子模拟与量子精密测量

报告时间：2023年10月7日（星期六）下午14:30

报告地点：量子楼410

报告摘要：

We analytically show that the effective interaction potential between microwave-shielded polar molecules consists of an anisotropic van der Waals–like shielding core and a modified dipolar interaction. This effective potential is validated by comparing its scattering cross sections with those calculated using intermolecular potential involving all interaction channels. It is shown that a scattering resonance can be induced under microwave fields reachable in current experiments. With the effective potential, we further study the Bardeen-Cooper-Schrieffer pairing in the microwave-shielded NaK gas. We show that the superfluid critical temperature is drastically enhanced near the resonance. As the effective potential is suitable for exploring the many-body physics of molecular gases, our results pave the way for studies of the ultracold gases of microwave-shielded molecular gases.

报告人简介：

易俗，中国科学院理论物理研究所研究员。2002年于佐治亚理工学院物理系获博士学位。随后相继在佐治亚理工学院和莱斯大学做博士后研究。2005年加入中国科学院理论物理研究所，入选中国科学院“百人计划”。2010年获国家杰出青年基金资助。主要从事原子分子与光物理的理论研究，研究方向包括超冷原子分子物理、量子模拟与量子精密测量等方向的理论研究。在包括PRA/B/L/R/X等期刊发表文章80余篇。