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arXiv · 2302.05101

Patterning by dynamically unstable spin-orbit-coupled Bose-Einstein condensates

Yunjia Zhai·Yongping Zhang
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Abstract

In a two-dimensional atomic Bose-Einstein condensate, we demonstrate Rashba spin-orbit coupling can always introduce dynamical instability into specific zero-quasimomentum states in all parameter regimes. During the evolution of the zero-quasimomentum states, such spin-orbit-coupling-induced instability can fragment the states and lead to a dynamically patterning process. The features of formed patterns are identified from the symmetries of the Bogoliubov-de Gennes Hamiltonian. We show that spin-orbit-coupled Bose-Einstein condensates provide an interesting platform for the investigation of pattern formations.

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Yunjia Zhai, Yongping Zhang. 2023-02-10. Patterning by dynamically unstable spin-orbit-coupled Bose-Einstein condensates. https://doi.org/10.1016/j.chaos.2023.113835

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