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Efficient Continuation Methods for Computing Ground States of Quasi‐2D Rotating Dipolar Bose‐Einstein Condensates

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  • B.-W. Jeng
  • P.-H. Su
  • M.-I. Char

Abstract

We study efficient continuation methods for computing the ground state solution of quasi‐2D rotating dipolar Bose‐Einstein condensates (BECs). First, the highly accurate spectral collocation method is used to discretize the governing Gross‐Pitaevskii equation (GPE). Then, we modify the two‐level continuation scheme for 3D dipolar BECs described in Jeng et al. (2014) to develop a single‐parameter continuation method for quasi‐2D rotating dipolar BECs, where the chemical potential is treated as the continuation parameter. Further, by adding the ratio of dipolar interaction strength to contact interaction strength as the second continuation parameter, we propose an efficient two‐parameter continuation method which can effectively show the change of the ground‐state vortex structures as the dipolar interaction strength gradually increases. Moreover, we also study linear stability analysis for the GPE. Sample numerical results on quasi‐2D rotating dipolar BECs are reported.

Suggested Citation

  • B.-W. Jeng & P.-H. Su & M.-I. Char, 2022. "Efficient Continuation Methods for Computing Ground States of Quasi‐2D Rotating Dipolar Bose‐Einstein Condensates," Advances in Mathematical Physics, John Wiley & Sons, vol. 2022(1).
    • Handle: RePEc:wly:jnlamp:v:2022:y:2022:i:1:n:9485124
    DOI: 10.1155/2022/9485124
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    1. Matthias Schmitt & Matthias Wenzel & Fabian Böttcher & Igor Ferrier-Barbut & Tilman Pfau, 2016. "Self-bound droplets of a dilute magnetic quantum liquid," Nature, Nature, vol. 539(7628), pages 259-262, November.
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