Interatom intrashell blockade

We demonstrate a feature of the Rydberg blockade mechanism which occurs between two initially excitedcircular Rydberg atoms. When both atoms are exposed to weak time-dependent electric fields, it is shown thatthe intrashell dynamics of each atom is strongly modified by the presence of the other. Three characteristicdynamical regimes are identified with separating radii which both scale linearly with principal quantum numbern for otherwise constant field parameters. A region of conditional entangled electron dynamics is separated fromthe outer asymptotic region of independent atom dynamics through a conditional radius, Rc. An inner region,where both atoms becomes locked in their initial state, is again separated from the conditional region by a smallerblocking radius, Rb