Observation of Stuckelberg oscillations in accelerated optical lattices

Year: 2010

Authors: Zenesini A., Ciampini D., Morsch O., Arimondo E.

Autors Affiliation: Institut für Experimentalphysik, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria; CNISM UdR Pisa, Dipartimento di Fisica E. Fermi, Universitą di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy; CNR – Istituto Nazionale di Ottica, Dipartimento di Fisica E. Fermi, Universitą di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy

Abstract: We report the experimental observation of Stuckelberg oscillations of matterwaves in optical lattices. Extending previous work on Landau-Zener tunneling of Bose-Einstein condensates in optical lattices, we study the effects of the accumulated phase between two successive crossings of the Brillouin zone edge. Our results agree well with a simple model for multiple Landau-Zener tunneling events taking into account the band structure of the optical lattice.

Journal/Review: PHYSICAL REVIEW A

Volume: 82 (6)      Pages from: 65601-1  to: 65601-4

More Information: We thank J. Radogostowicz for assistance. Financial support by the European Union-STREP NAMEQUAM and by a CNISM Progetto Innesco 2007 is gratefully acknowledged.
KeyWords: Crystal lattices; Statistical mechanics; Steam condensers; Bose-Einstein condensates; Brillouin zone edge; Experimental observation; Landau zener tunneling; Matter waves; Optical lattices; Successive crossings
DOI: 10.1103/PhysRevA.82.065601

Citations: 25
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