Modulation instability associated nonlinear dynamics of spin-orbit coupled Bose-Einstein condensates
arXiv:1809.08491 · doi:10.1088/1361-6455/aafbdd
Abstract
We study pattern-forming nonlinear dynamics starting from a continuous wave state of quasi-one-dimensional two-component Bose-Einstein condensates with synthetic spin-orbit coupling induced by Raman lasers. Modulation instability can occur even when the miscibility condition due to the interatomic interactions is satisfied. We find that the initial stage of the nonlinear development is consistent with the prediction of modulation instability, where the two primary and secondary instability bands lead to the spontaneous growth of the modulation and the subsequent complicated dynamics of pattern formation. At later stages of the evolution, the wave functions undergo clear separation in the momentum space, reflected in the dispersion of the single particle Hamiltonian.
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Cited by in corpus (12)
- Modulational instability and soliton generation in chiral Bose-Einstein condensates with zero-energy nonlinearity
- Decay of two-dimensional quantum turbulence in binary Bose-Einstein condensates
- Modulational Instabity of Spin-Orbit Coupled Bose-Einstein Condensates in Discrete Media
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- Domain formation of modulation instability in spin-orbit-Rabi coupled Gross-Pitaevskii equation with cubic-quintic interactions
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