534 citations · 840 across the 3 of their papers we have counts for
7 papers · 1 filter
Precision measurement of spin-dependent interaction strengths for spin-1 and spin-2 87Rb atoms
Artur Widera, Fabrice Gerbier, Simon Foelling +3
We report on precision measurements of spin-dependent interaction-strengths in the 87Rb spin-1 and spin-2 hyperfine ground states. Our method is based on the recent observation of…
Resonant control of spin dynamics in ultracold quantum gases by microwave dressing
Fabrice Gerbier, Artur Widera, Simon Foelling +2
We study experimentally interaction-driven spin oscillations in optical lattices in the presence of an off-resonant microwave field. We show that the energy shift induced by this m…
Probing number squeezing of ultracold atoms across the superfluid-Mott insulator transition
Fabrice Gerbier, Simon Foelling, Artur Widera +2
The evolution of on-site number fluctuations of ultracold atoms in optical lattices is experimentally investigated by monitoring the suppression of spin-changing collisions across…
Interference pattern and visibility of a Mott insulator
Fabrice Gerbier, Artur Widera, Simon Foelling +3
We analyze theoretically the experiment reported in [F. Gerbier et al, cond-mat/0503452], where the interference pattern produced by an expanding atomic cloud in the Mott insulator…
Coherent collisional spin dynamics in optical lattices
Artur Widera, Fabrice Gerbier, Simon Foelling +3
We report on the observation of coherent, purely collisionally driven spin dynamics of neutral atoms in an optical lattice. For high lattice depths, atom pairs confined to the same…
Phase coherence of an atomic Mott insulator
Fabrice Gerbier, Artur Widera, Simon Foelling +3
We investigate the phase coherence properties of ultracold Bose gases in optical lattices, with special emphasis on the Mott insulating phase. We show that phase coherence on short…