Experimental tests of robust gate designs utilizing Rydberg dressing of neutral atoms

Neutral atoms in tweezer arrays have rapidly advanced as a platform for quantum computing in the last decade. As arrays have scaled up to hundreds of atoms and logical processing with early error correction has been demonstrated [1], the need for robust high-fidelity gates remains critical. Technical noise sources, including laser frequency and amplitude noise as well as electric field stability and atom motion, contribute to gate infidelity. We test the robustness of gates based on Rydberg-dressing approaches [2, 3] in the presence of laboratory noise and constraints. These schemes promise higher fidelity operations via robustness to technical noise, an important quality for practical quantum computers of the future.

 

Sandia National Laboratories is a multimission laboratory managed and operated by NTESS, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.

 

1. D. Bluvstein, et al., Nature (2023): 1-3.

2. A. Mitra, et al., Physical Review A 101.3 (2020): 030301.

3. Y-Y. Jau, et al., Nature Physics 12.1 (2016): 71-74.