Chinese Physics B, Volume. 29, Issue 10, (2020)

Quantized vortices in spinor Bose–Einstein condensates with time–space modulated interactions and stability analysis

Yu-Qin Yao1、† and Ji Li2
Author Affiliations
  • 1Department of Applied Mathematics, China Agricultural University, Beijing 02206, China
  • 2Department of Physics, Taiyuan Normal University, Taiyuan 030031, China
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    Figures & Tables(5)
    The density distributions |Ψ± 1,0|2 and phase diagrams at t = 0 of the vortex solution (9) of the rotating spin-1 BECs for topological charge α = 1. (a1)–(a4) Evolution of the density distributions |Ψ1(x,y,0)|2 for different radial quantum numbers n and the phase diagram. (b1)–(b4) Evolution of the density distributions |Ψ–1(x,y,0)|2 for different radial quantum numbers n and the phase diagram. (c1)–(c4) Evolution of the density distributions |Ψ0(x,y,0)|2 for different radial quantum numbers n and the phase diagram. The parameters are taken as Ω = 0.5, μ1 = 8, μ2 = 4, ϵ = 0 and Ω0 = 1.
    The density profiles |Ψ± 1,0|2 and phase diagrams at t = 0 for the vortex solution (9) of the rotating spin-1 BECs for different topological charge α and fixed quantum number n = 1. The blue lines denote the density profiles |Ψ± 1,0|2 for the topological charge α = 1, respectively. The green lines denote the density profiles |Ψ± 1,0|2 for the topological charge α = 2 and the red lines denote the density profiles |Ψ± 1,0|2 for the topological charge α = 3, respectively.
    The evolution of density distributions |ψ± 1,0|2 and phase diagrams for the vortex solution (9) of the rotating spin-1 BECs for different values of topological charge α and fixed quantum number n = 1. The first column is stable vortex for the topological charge α = 1. The second and third columns are unstable vortex for the topological charge α = 2 and α = 3, respectively. The parameters are Ω = 0.5, μ1 = 8, μ2 = 4, ϵ = 0 and ω0 = 1. The domain is (x,y) ∈ [–5,5] × [–5,5] for all the cases.
    The evolution of density distributions |ψ± 1,0|2 and phase diagrams for the vortex solution (9) of the rotating spin-1 BECs for the fixed topological charge α and different quantum number n = 1. (a1)–(c3) Evolution of density distributions |ψ± 1,0|2 and phase diagrams for the quantum number n = 1. (d1)–(f3) Evolution of density distributions |ψ± 1,0|2 and phase diagrams for the quantum number n = 2. The parameters are Ω = 0.5, μ1 = 8, μ2 = 4, ϵ = 0 and ω0 = 1.
    Time evolution of density distributions |ψ± 1,0|2 and phase diagrams for the vortex solution (9) of the rotating spin-1 BECs for different values of topological charge α and quantum number n. The first three lines show the evolution of density distributions |ψ± 1,0|2 and phase diagrams for n = α = 1. The three lines in the middle show the evolution of density distributions |ψ± 1,0|2 and phase diagrams for n = 1 and α = 2. The last three lines demonstrate the evolution of density distributions |ψ± 1,0|2 and phase diagrams for n = 2 and α = 1. The parameters are Ω = 0.5, μ1 = 8, μ2 = 4, ϵ = 0.1 and ω0 = 0.2.
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    Yu-Qin Yao, Ji Li. Quantized vortices in spinor Bose–Einstein condensates with time–space modulated interactions and stability analysis[J]. Chinese Physics B, 2020, 29(10):

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    Paper Information

    Received: May. 12, 2020

    Accepted: --

    Published Online: Apr. 21, 2021

    The Author Email: Yu-Qin Yao (yyqinw@126.com)

    DOI:10.1088/1674-1056/aba09f

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