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Formation of spatial shell structures in the superfluid to Mott insulator transition
Simon Foelling, Artur Widera, Torben Mueller +2
We report on the direct observation of the transition from a compressible superfluid to an incompressible Mott insulator by recording the in-trap density distribution of a Bosonic…
Quantum Information Processing in Optical Lattices and Magnetic Microtraps
Philipp Treutlein, Tilo Steinmetz, Yves Colombe +9
We review our experiments on quantum information processing with neutral atoms in optical lattices and magnetic microtraps. Atoms in an optical lattice in the Mott insulator regime…
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…