Binding Potentials and Interaction Gates between Microwave-Dressed Rydberg Atoms

David Petrosyan, Klaus Mølmer
2014 Physical Review Letters  
We demonstrate finite range binding potentials between pairs of Rydberg atoms interacting with each other via attractive and repulsive van der Waals potentials and driven by a microwave field. We show that, using destructive quantum interference to cancel single-atom Rydberg excitation, the Rydberg-dimer states can be selectively and coherently populated from the two-atom ground state. This can be used to realize a two-qubit interaction gate which is not susceptible to mechanical forces between
more » ... the atoms and is therefore immune to motional decoherence.
doi:10.1103/physrevlett.113.123003 pmid:25279625 fatcat:xgpkkvu3lrcm3p6laqeiaipifi