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A Browaeys, H H ffnert, C R. McKenzie, S L. Rolston, Kristian Helmerson, William D. Phillips
Abstract
We have performed experiments using a 3D-Bose-Einstein condensate of sodium atoms in a 1D optical lattice to explore some unusual properties of band-structure. In particular, we investigate the loading of a condensate into a moving lattice and find non-intuitive behavior. We also revisit the behavior of atoms, prepared in a single quasimomentum state, in an accelerating lattice. We generalize this study to a cloud whose atoms have a large quasimomentum spread, and show that the cloud behaves differently from atoms in a single Bloch state. Finally, we compare our findings with recent experiments performed with fermions in an optical lattice.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Browaeys, A.
, H ffnert, H.
, McKenzie, C.
, Rolston, S.
, Helmerson, K.
and Phillips, W.
(2008),
Transport of Atoms in a Quantum Conveyor Belt, Physical Review A (Atomic, Molecular and Optical Physics)
(Accessed October 10, 2025)