Quantum Dynamics Seminar: Microwave-shielded polar molecules: from ultracold chemistry to quantum matter

Date

Feb 8, 2024

Time

4:30 PM - 5:30 PM

Speaker

Xinyu Lou

Affiliation

MPI of Quantum Optics

Language

en

Main Topic

Physik

Other Topics

Physik

Description

Strongly interacting dipolar Fermi gases is a unique platform for studying exotic quantum matter such as p-wave superfluidity and extended Fermi-Hubbard models. I will first show our endeavors in understanding and controlling collisions of ultracold molecules, which eventually allow us to stabilize the molecular gas by microwave shielding. This technique enables the evaporation of polar molecules to temperatures well below the Fermi temperature. The intermolecular potential can be flexibly tuned by the microwave field, allowing us to observe field-linked resonances in collisions of polar molecules. It provides a universal tuning knob to independently control the dipolar interaction and contact interaction. In the end, I will present the creation of ultracold fieldlinked tetratomic molecules by electroassociation in a degenerate Fermi gas of microwaveshielded polar molecules. Additionally, I will show a few exciting new opportunities associated with these field-linked molecules.

Last modified: Feb 8, 2024, 7:40:36 AM