Garnett W. Bryant,1,* M. Zieliński,2 Natalia Malkova,1 James Sims,3 W. Jaskólski,2 and Javier Aizpurua4 1Atomic Physics Division and Joint Quantum Institute, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8423 2Instytut Fizyki UMK, Grudzi ↪ adzka 5, 87-100 Toruń, Poland 3Information Technology Laboratory, National Institute of Standards and Techno...