Fast Preparation and Detection of a Rydberg Qubit using Atomic Ensembles

Matthew Peters | Wenchao Xu | Aditya Venkatramani | Sergio Cantu | Tamara Sumarac | Valentin Klusener | Emily Qiu | Mikhail Lukin | Vladan Vuletic

Neutral atom arrays have recently emerged as a competitive platform for quantum simulation and computation with many properties favorable for scaling. However, for most neutral atom qubit schemes, readout of an atomic qubit is a destructive process that precludes both qubit reuse and the application of many error-correcting codes. To address this challenge, we demonstrate fast preparation, manipulation, and nondestructive readout of a single Rydberg qubit embedded in an atomic ensemble. By harnessing the collective optical response of the atomic ensemble, we nondestructively detect the state of a qubit ~1000x faster than single-atom fluorescence imaging with high fidelity.

Funding Sources: NSF | NSF-funded Center for Ultracold Atoms | ARO | ARL | AFOSR | DARPA | DOE | Boeing