Journal
PHYSICAL REVIEW E
Volume 103, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.103.052206
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- Botswana International University of Science and Technology [DVC/RDI/2/1/16I (25)]
- Kavli Institute for Theoretical Physics (KITP), University of California Santa Barbara (USA)
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This study introduces a vector form of the cubic complex Ginzburg-Landau equation describing the dynamics of dissipative solitons in two-component helicoidal spin-orbit coupled open Bose-Einstein condensates, with dissipative interactions added through coupled rate equations. Using numerical simulations and linear theory, the research investigates modulational instability and the threshold for amplitude perturbations.
We introduce a vector form of the cubic complex Ginzburg-Landau equation describing the dynamics of dissipative solitons in the two-component helicoidal spin-orbit coupled open Bose-Einstein condensates (BECs), where the addition of dissipative interactions is done through coupled rate equations. Furthermore, the standard linear stability analysis is used to investigate theoretically the stability of continuous-wave (cw) solutions and to obtain an expression for the modulational instability gain spectrum. Using direct simulations of the Fourier space, we numerically investigate the dynamics of the modulational instability in the presence of helicoidal spin-orbit coupling. Our numerical simulations confirm the theoretical predictions of the linear theory as well as the threshold for amplitude perturbations.
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