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arXiv · 0708.0479

Bose-Einstein condensates in 1D optical lattices: nonlinearity and Wannier-Stark spectra

Ennio Arimondo·Donatella Ciampini·Oliver Morsch
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Abstract

We present our experimental investigations on the subject of nonlinearity-modified Bloch-oscillations and of nonlinear Landau-Zener tunneling between two energy bands in a rubidium Bose Einstein condensate in an accelerated periodic potential. Nonlinearity introduces an asymmetry in Landau-Zener tunneling. We also present measurements of resonantly enhanced tunneling between the Wannier-Stark energy levels for Bose-Einstein condensates loaded into an optical lattice.

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Ennio Arimondo, Donatella Ciampini, Oliver Morsch. 2007-08-03. Bose-Einstein condensates in 1D optical lattices: nonlinearity and Wannier-Stark spectra. https://arxiv.org/abs/0708.0479

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