Author Affiliations

Michael D. Mazurek,^1,2,3 Alexander Mikhaylov,² Kristen Parzuchowski,^2,3 Daniel J. Lum,⁴ L. K. Shalm,¹ Christian Drago,⁵ J. E. Sipe,⁵ Sae Woo Nam,¹ Marcus T. Cicerone,⁴ Charles H. Camp, Jr.,⁴ Ralph Jimenez,^2,6 T. Gerrits,¹ and Martin J. Stevens¹

¹National Institute of Standards and Technology, Boulder, Colorado 80305, USA

²JILA, National Institute of Standards and Technology and University of Colorado Boulder, Boulder, Colorado 80309, USA

³Department of Physics, University of Colorado Boulder, Boulder, Colorado 80309 USA

⁴National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

⁵Department of Physics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 1A7, Canada

⁶Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309 USA