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Collective excitations of a periodic Bose condensate in the Wannier representation

✍ Scribed by M.L. Chiofalo; M. Polini; M.P. Tosi

Publisher
Springer
Year
2000
Tongue
English
Weight
165 KB
Volume
11
Category
Article
ISSN
1434-6060

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πŸ“œ SIMILAR VOLUMES

Nonlinear effects in periodic potentials
Nonlinear effects in periodic potentials: asymmetric Landau-Zener tunnelling of a Bose-Einstein condensate
✍ M. Jona-Lasinio; O. Morsch; M. Cristiani; N. Malossi; J. H. MΓΌller; E. Courtade; πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 394 KB

From a two-level model for nonlinear Landau-Zener tunnelling between two energy bands of a Bose-Einstein condensate in a periodic potential we obtain unequal tunnelling rates for the two directions of tunnelling. With increasing nonlinearity, tunnelling from the ground state to the excited state is