Resonant control of polar molecules in an optical lattice

TL;DR

This paper demonstrates how resonant control of polar molecules in an optical lattice can be achieved through tuning bound states with electric fields and trap parameters, enabling precise manipulation for quantum applications.

Contribution

It introduces a method for controlling polar molecules in optical lattices via resonant tuning of bound states, expanding control possibilities beyond free space and quasi-2D geometries.

Findings

Wider avoided crossings in 3D optical lattices compared to other geometries.

Dipolar confinement induced resonances can be created with feasible parameters.

Resonant control is achievable with realistic electric fields and trap frequencies.

Abstract

We study the resonant control of two nonreactive polar molecules in an optical lattice site, focussing on the example of RbCs. Collisional control can be achieved by tuning bound states of the intermolecular dipolar potential, by varying the applied electric field or trap frequency. We consider a wide range of electric fields and trapping geometries, showing that a three-dimensional optical lattice allows for significantly wider avoided crossings than free space or quasi-two dimensional geometries. Furthermore, we find that dipolar confinement induced resonances can be created with reasonable trapping frequencies and electric fields, and have widths that will enable useful control in forthcoming experiments.