September 9, 2024
      
                  
        
  Author(s)
  S  Norimoto,   P  See,   N  Schoinas,   I  Rungger,   Tommy  Boykin,   Michael  Stewart,   J. P.  Griffiths,   C.  Chen,   D. A.  Ritchie,   M.  Kataoka
 
       
            
    
    
        Increasing electric current from a single-electron source is a main challenge in an effort to establish the standard of the ampere defined by the fixed value of the elementary charge e and operation frequency f . While the current scales with f , due to an