Ronald L. Walsworth^1,2,6

• ¹Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA
• ²Quantum Technology Center, University of Maryland, College Park, Maryland 20742, USA
• ³Departamento de Física, Universidad Nacional de Colombia, sede Bogotá, Carrera 45, Colombia
• ⁴Department of Physics, Youngstown State University, Youngstown, Ohio 44555, USA
• ⁵Laboratory for Physical Sciences, 8050 Greenmead Drive, College Park, Maryland 20740, USA
• ⁶Department of Physics, University of Maryland, College Park, Maryland 20742, USA

• ^*These authors contributed equally to this work.
• ^†Contact author: xzheng15@umd.edu