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Nonlinear dynamics of a spin-orbit-coupled Bose-Einstein condensate by Zhang, Yongping; Gui, Zhiqian; Chen, Yuanyuan is a scholarly article available to read on EtoBox.

What is Nonlinear dynamics of a spin-orbit-coupled Bose-Einstein condensate about?

Single-particle dynamics of a spin-orbit-coupled Bose-Einstein condensate has recently been investigated in experiments that explore the physics of Landau-Zener tunneling and of the Zitterbewegung. In this paper, we study the influence of a nonlinearity due to interactions on these dynamics and show that the dispersion relation develops interesting loop strucures. The atoms can move along the nonlinear dispersion curve in the presence of a weak acceleration force and we show that the loops lead to straightforward nonlinear Landau-Zener tunneling. However, we find that for the Zitterbewegung, induced by a sudden quench in the spin-orbit coupling parameters, the nonlinear dispersion is irrelevant.

Author

Zhang, Yongping; Gui, Zhiqian; Chen, Yuanyuan

Published

2018

Language

EN