Effective-mass analysis of Bose-Einstein condensates in optical lattices: Stabilization and levitation

H. Pu; L. O. Baksmaty; W. Zhang; N. P. Bigelow; P. Meystre

doi:10.1103/PhysRevA.67.043605

Effective-mass analysis of Bose-Einstein condensates in optical lattices: Stabilization and levitation

H. Pu, L. O. Baksmaty, W. Zhang, N. P. Bigelow, and P. Meystre

Phys. Rev. A 67, 043605 – Published 11 April 2003

Abstract

We investigate the time evolution of a Bose-Einstein condensate in a periodic optical potential. Using an effective mass formalism, we study the equation of motion for the envelope function modulating the Bloch states of the lattice potential. In particular, we show how the negative effective-mass affects the dynamics of the condensate.

Received 2 December 2002

DOI:https://doi.org/10.1103/PhysRevA.67.043605

Authors & Affiliations

H. Pu¹, L. O. Baksmaty², W. Zhang¹, N. P. Bigelow², and P. Meystre¹

¹Optical Sciences Center, The University of Arizona, Tucson, Arizona 85721
²Department of Physics and Astronomy, and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627

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Vol. 67, Iss. 4 — April 2003

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