Raman Sideband Cooling in Optical Tweezer Arrays for Rydberg Dressing

TL;DR

This paper demonstrates how Raman sideband cooling can mitigate inhomogeneous light shifts and temperature effects in optical tweezer arrays, enabling improved Rydberg dressing for quantum simulation of spin systems.

Contribution

It introduces a method to overcome trapping-induced limitations in optical tweezer arrays using Raman sideband cooling, facilitating advanced quantum simulation experiments.

Findings

Raman sideband cooling reduces inhomogeneous light shifts.

Cooling improves temperature control in optical tweezers.

Enables effective Rydberg dressing in atom arrays.

Abstract

Single neutral atoms trapped in optical tweezers and laser-coupled to Rydberg states provide a fast and flexible platform to generate configurable atomic arrays for quantum simulation. The platform is especially suited to study quantum spin systems in various geometries. However, for experiments requiring continuous trapping, inhomogeneous light shifts induced by the trapping potential and temperature broadening impose severe limitations. Here we show how Raman sideband cooling allows one to overcome those limitations, thus, preparing the stage for Rydberg dressing in tweezer arrays.