title: Dynamical localization of ultracold sodium atoms.
abstract: We report a study of atomic motion in time-dependent optical potentials. We measure momentum transfer in parameter regimes for which the classical dynamics are chaotic, and observe the quantum suppression of chaos by dynamical localization. The high degree of control over the experimental parameters enables detailed comparisons with theoretical predictions, and opens new avenues for investigating quantum chaos.
authors.affiliation: Department of Physics, The University of Texas at Austin, Austin, Texas 78712-1081, USA.
authors.forename: C F
authors.initials: CF
authors.lastname: Bharucha
authors.forename: J C
authors.initials: JC
authors.lastname: Robinson
authors.forename: F L
authors.initials: FL
authors.lastname: Moore
authors.forename: B
authors.initials: B
authors.lastname: Sundaram
authors.forename: Q
authors.initials: Q
authors.lastname: Niu
authors.forename: M G
authors.initials: MG
authors.lastname: Raizen