6533b874fe1ef96bd12d61cc

RESEARCH PRODUCT

Resonant control of spin dynamics in ultracold quantum gases by microwave dressing

Olaf MandelArtur WideraImmanuel BlochSimon FöllingFabrice Gerbier

subject

PhysicsField (physics)Quantum gasMott insulatorResonanceFOS: Physical sciences01 natural sciencesAtomic and Molecular Physics and Optics010305 fluids & plasmas3. Good healthlaw.inventionCondensed Matter - Other Condensed MatterRadiation pressurelaw[PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]0103 physical sciencesAtomic physics010306 general physicsBose–Einstein condensateMicrowaveSpin-½Other Condensed Matter (cond-mat.other)

description

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 microwave field can be used to control the spin oscillations by tuning the system either into resonance to achieve near-unity contrast or far away from resonance to suppress the oscillations. Finally, we propose a scheme based on this technique to create a flat sample with either singly- or doubly-occupied sites, starting from an inhomogeneous Mott insulator, where singly- and doubly-occupied sites coexist.

10.1103/physreva.73.041602http://arxiv.org/abs/cond-mat/0601151