Multicomponent Bright Solitons in <I>F</I>=2 Spinor Bose–Einstein Condensates

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  • Uchiyama Masaru
    Department of Physics, Graduate School of Science, University of Tokyo
  • Ieda Jun’ichi
    Institute for Materials Research, Tohoku University
  • Wadati Miki
    Department of Physics, Graduate School of Science, University of Tokyo

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  • Multicomponent bright solitons in F = 2 spinor Bose-Einstein condensates

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We study soliton solutions for the Gross–Pitaevskii equation of the spinor Bose–Einstein condensates with hyperfine spin F=2 in one-dimension. Analyses are made in two ways: by assuming single-mode amplitudes and by generalizing Hirota’s direct method for multi-components. We obtain one-solitons of single-peak type in the ferromagnetic, polar and cyclic states, respectively. Moreover, twin-peak type solitons both in the ferromagnetic and the polar state are found.

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