title: Exploring the phase space of the quantum delta-kicked accelerator.
abstract: We experimentally explore the underlying pseudoclassical phase space structure of the quantum delta-kicked accelerator. This was achieved by exposing a Bose-Einstein condensate to the spatially corrugated potential created by pulses of an off-resonant standing light wave. For the first time quantum accelerator modes were realized in such a system. By utilizing the narrow momentum distribution of the condensate we were able to observe the discrete momentum state structure of a quantum accelerator mode and also to directly measure the size of the structures in the phase space.
authors.affiliation: Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072, USA.
authors.forename: G
authors.initials: G
authors.lastname: Behinaein
authors.forename: V
authors.initials: V
authors.lastname: Ramareddy
authors.forename: P
authors.initials: P
authors.lastname: Ahmadi
authors.forename: G S
authors.initials: GS
authors.lastname: Summy