Coherent Interactions and Entanglement Between CaF Molecules in a Reconfigurable Tweezer Array

Reconfigurable optical tweezer arrays of polar molecules are a promising platform for quantum simulation and quantum information processing. In this talk, we report on recent advances in controlling molecules in this platform. Specifically, we have achieved the capability to prepare arbitrary 1D arrays of single CaF molecules and the ability to initialize them into a single internal state. In addition, we have observed coherent dipolar spin-exchange interactions between pairs of molecules, and entangled them into Bell pairs by implementing a two-qubit iSWAP gate. Our results demonstrate key building blocks needed for quantum information processing and simulation of quantum spin models. More generally, these advances lay the groundwork for using molecular tweezer arrays for quantum science.

This work is supported by the National Science Foundation under Grant No. 2207518.