A cryogenic neutral atom optical tweezer array*

Scalable ultracold Rydberg atom arrays provide an intriguing platform for programmable quantum computation and simulation. We present a new system for the control of 2D Rydberg qubit arrays of 87Rb atoms embedded in a cryogenic environment. The setup leverages two main features: a low-vibration cryostat and a high optical access vacuum chamber with a room temperature large-field-of-view objective. In our low vibration system, we observe single-atom vacuum lifetime above 2500 s due to cryopumping. Furthermore, a < 50 K cold box should extend the Rydberg lifetime to several times its value at room temperature when fully upgraded in the future. The high-optical access vacuum chamber will allow the creation and control of a large tweezer array or optical lattice with the site-resolved addressability and interaction control aided by optical tweezers. We report our results on trapping and rearranging atoms within the cryogenic environment, as well as results on Rydberg and qubit control.