Trapped Bose-Einstein condensates in the presence of a current nonlinearity

Abstract

We investigate the effect of a current nonlinearity on the evolution of a trapped atomic Bose-Einstein condensate. We have implemented techniques from the field of nonlinear optics to provide new insights into the irregular dynamics associated with chiral superfluids. We have found that the current nonlinearity can be treated as a Kerr-like nonlinearity modulated by a spatiotemporal function that can lead to a number of processes such as broadening and compression of the wave function. In the long time scale limit, the wave function is drastically deformed and delocalised compared to its initial state. However, localised modes which oscillate with the period of the inverse trap frequency can still be observed.

A short note on the links between nonlinear gauge potentials and nonlinear optics. Comments are welcome

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Cited by in corpus (5)

• Modulational instability and soliton generation in chiral Bose-Einstein condensates with zero-energy nonlinearity
• Conditional Recurrent Neural Networks for broad applications in nonlinear optics
• Few-to-many vortex states of density-angular-momentum coupled Bose-Einstein condensates
• Nonlinear effects on the dynamics of quantum harmonic modes coupled through angular momentum
• Excitation spectrum of vortex-lattice modes in a rotating condensate with a density-dependent gauge potential