Shi, Tao

Tao Shi is a professor at the Institute of Theoretical Physics (ITP), Chinese Academy of Sciences (CAS). He received his PhD from ITP, CAS, and subsequently conducted postdoctoral research at the Max Planck Institute of Quantum Optics. His current research focuses on microwave-shielded polar molecules.

Many-body Quantum Phases in Micro-wave Shielded Polar Molecules

abstract: We 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 and a field-link tetramer bound state emerges. With the effective potential, we further study the Bardeen-Cooper-Schrieffer pairing, Bose-Einstein condensations, and supersolid phases in microwave-shielded molecular gas. We show the fermionic superfluid critical temperature drastically enhanced near the resonance, a formation of self-bound droplets with reduced condensate fraction resembling a magnified Helium 4, and a formation of supersolidity controlled by the microwave elliptical angle.