Rearrangement of individual atoms in a 2000-site optical-tweezer array at cryogenic temperatures
G. Pichard, Desiree Lim, Étienne Bloch, Julien Vaneecloo, Lilian Bourachot, Gert‐Jan Both, Guillaume Mériaux, Sylvain Dutartre, Richard Hostein, Julien Paris, Bruno Ximenez, Adrien Signoles, Antoine Browaeys, Thierry Lahaye, Davide Dreon
Abstract
Arrays of single atoms trapped in optical tweezers have become a leading platform for quantum science and technology. A challenge at the frontier of the field is to scale up the number of atoms into the thousands. In addition, combining these arrays with a cryogenic environment would come with significant gains in lifetime and fidelity of quantum operations. This study successfully combines large-scale atomic arrays with a cryogenic environment, at a temperature of 6 K. The authors demonstrate the rearrangement of more than 800 atoms within a 2000-site array and discuss possible improvements of the setup, in a key step toward better, larger atom arrays for quantum technologies.