Laser Spectroscopy
ATOMIC CLOCKS AND COLD ATOM SCATTERING
Chad Fertig, Ronald Legere, J. IRFON REES, Kurt Gibble, S. J. J. M. F. Kokkelmans, BOUDEWIJN J. VERHAAR
Abstract
We demonstrate a Rb fountain clock which has a small cold collision shift that is cancelled by detuning the microwave cavity. To further enhance the stability and accuracy, we are currently developing a new state detection technique that directly measures population differences and are juggling atoms in the fountain. Fountain clocks also enable a novel quantum atom-optics precision scattering measurement.