Nonlinear Bloch-Zener oscillations for Bose-Einstein condensates in a Lieb optical lattice
We investigate Bloch–Zener oscillations and mean-field Bloch bands of a Bose–Einstein condensate (BEC) in a Lieb optical lattice. We find that the atomic interaction will break the point group symmetry of the system, leading to the destruction of the Dirac cone structure, while the flat band is pres...
| Published in: | New Journal of Physics |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab8e59 |