We investigate the coherence properties of ultra-cold rubidium atoms trapped in far-detuned optical dipole traps using microwave and two-photon optical spectroscopy. We also investigate anomalous dynamics of ultra-cold rubidium atoms in dissipative optical lattices.
We form Bose Einstein condensates of rubidium 87 atoms, quantum degenerated fermionic gas of potassium 40 atoms, and their mixtures using laser cooling and evaporative cooling
Besides their potential for high brightness sources, coupled laser networks reveal intriguing physics. First, very large arrays of >1000 lasers with nearest-neighbor coupling are shown to rapidly “dissipate” into long-range phase ordering, identical to the ground state of a corresponding XY spin Hamiltonian.
We investigate slow propagation of light in warm vapor cells. We observe group velocities seven orders of magnitude smaller than the speed of light in vacuum.
Light-pulse atom interferometry is an extremely successful tool in measuring forces and accelerations on neutral atoms, reaching sensitivities of up to 10-10 m/s^2 in state-of-the-art experiments.