Group Seminar at MPQ: Microwave-shielded polar molecules

Prof. Tao Shi, Chinese Academy of Science
Group Seminar at MPQ lecture hall and zoom
Tuesday, May 23rd, 09:00am (MEZ)

Abstract:

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 inter- action. 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 scat- tering 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.

Reference:

F. Deng et al., Phys. Rev. Lett. 130, 183001 (2023)