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Dynamics of reflection of ultracold atoms from a periodic one-dimensional magnetic lattice potential

By Mandip Singh, Russell McLean, Andrei Sidorov and Peter Hannaford

Abstract

We report on an experimental study of the dynamics of the reflection of ultracold atoms from a periodic one-dimensional magnetic lattice potential. The magnetic lattice potential of period 10 m is generated by applying a uniform bias magnetic field to a microfabricated periodic structure on a silicon wafer coated with a multilayered TbGdFeCo/Cr magneto-optical film. The effective thickness of the magnetic film is about 960 nm. A detailed study of the profile of the reflected atoms as a function of externally induced periodic corrugation in the potential is described. The effect of angle of incidence is investigated in detail. The experimental observations are supported by numerical simulations

Topics: Ultracold atoms, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0204 Condensed Matter Physics
Publisher: American Physical Society
Year: 2009
DOI identifier: 10.1103/PhysRevA.79.053407
OAI identifier: oai:vtl.cc.swin.edu.au:swin:11961
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