Very high precision bound state spectroscopy near a ${}^{85}$Rb Feshbach resonance

N. R. Claussen, S. J. J. M. F. Kokkelmans, S. T. Thompson +2

We precisely measured the binding energy of a molecular state near the Feshbach resonance in a ${}^{85}$Rb Bose-Einstein condensate (BEC). Rapid magnetic field pulses induced coheren…