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- Title
Nonlinear dynamics in double square-well potentials.
- Authors
Khomeriki, R.; Leon, J.; Ruffo, S.; Wimberger, S.
- Abstract
The first example of the coexistence of Josephson oscillations with a self-trapping regime is found in the context of the coherent nonlinear dynamics in a double square-well potential. We prove the simultaneous existence of symmetric, antisymmetric, and asymmetric stationary solutions of the associated Gross-Pitaevskii equation, which explains this macroscopic bistability. We illustrate and confirm the effect with numerical simulations. This property allows suggesting experiments with Bose-Einstein condensates in engineered optical lattices or with weakly coupled optical waveguide arrays.
- Subjects
DYNAMICS; OSCILLATIONS; EQUATIONS; BOSE-Einstein condensation; BOSONS; SUPERFLUIDITY; LATTICE theory
- Publication
Theoretical & Mathematical Physics, 2007, Vol 152, Issue 2, p1122
- ISSN
0040-5779
- Publication type
Article
- DOI
10.1007/s11232-007-0096-y