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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 1 — Jan. 12, 2004
  • pp: 4–10

Instabilities of a Bose-Einstein condensate in a periodic potential: an experimental investigation

M. Cristiani, O. Morsch, N. Malossi, M. Jona-Lasinio, M. Anderlini, E. Courtade, and E. Arimondo  »View Author Affiliations

Optics Express, Vol. 12, Issue 1, pp. 4-10 (2004)

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By accelerating a Bose-Einstein condensate in a controlled way across the edge of the Brillouin zone of a 1D optical lattice, we investigate the stability of the condensate in the vicinity of the zone edge. Through an analysis of the visibility of the interference pattern after a time-of-flight and the widths of the interference peaks, we characterize the onset of instability as the acceleration of the lattice is decreased. We briefly discuss the significance of our results with respect to recent theoretical work.

© 2004 Optical Society of America

OCIS Codes
(000.2190) General : Experimental physics
(020.0020) Atomic and molecular physics : Atomic and molecular physics

ToC Category:
Focus Issue: Cold atomic gases in optical lattices

Original Manuscript: November 7, 2003
Revised Manuscript: December 22, 2003
Published: January 12, 2004

M. Cristiani, Oliver Morsch, N. Malossi, M. Jona-Lasinio, M. Anderlini, E. Courtade, and E. Arimondo, "Instabilities of a Bose-Einstein condensate in a periodic potential: an experimental investigation," Opt. Express 12, 4-10 (2004)

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Fig. 1. Fig. 2. Fig. 3.

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