title: Fidelity of the quantum δ-kicked accelerator.
abstract: The sensitivity of the fidelity in the kicked rotor to an acceleration is experimentally and theoretically investigated. We used a Bose-Einstein condensate exposed to a sequence of pulses from a standing light wave followed by a single reversal pulse in which the standing wave was shifted by half a wavelength. The features of the fidelity "spectrum" as a function of acceleration are presented. This work may find applications in the measurement of temperature of an ultracold atomic sample.
authors.affiliation: Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072, USA.
authors.forename: R K
authors.initials: RK
authors.lastname: Shrestha
authors.forename: S
authors.initials: S
authors.lastname: Wimberger
authors.forename: J
authors.initials: J
authors.lastname: Ni
authors.forename: W K
authors.initials: WK
authors.lastname: Lam
authors.forename: G S
authors.initials: GS
authors.lastname: Summy
mesh_terms: D000054:Acceleration; D003080:Cold Temperature; D003198:Computer Simulation; D008956:Models, Chemical; D009038:Motion; D017711:Nonlinear Dynamics; D011789:Quantum Theory