Author Affiliations

Tian Li,¹ Brian E. Anderson,¹ Travis Horrom,¹ Bonnie L. Schmittberger,¹ Kevin M. Jones,² and Paul D. Lett^1,3

¹Joint Quantum Institute, National Institute of Standards and Technology and the University of Maryland, College Park, MD 20742, USA

²Department of Physics, Williams College, Williamstown, Massachusetts 01267, USA

³Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA