• Magnons interaction of spinor Bose–Einstein condensates in an optical lattice

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    • Keywords


      Magnons; spin wave; dipolar spinor Bose–Einstein condensates.

    • Abstract


      We study the interaction of magnons in dipolar spinor Bose–Einstein condensates in an optical lattice. By means of Holstein–Primakoff and Fourier transformations the energy spectra of the ground and the excited states is obtained analytically. Our results show that the collision of magnons is elastic which is expressed by the conservation of wave numbers in the process of collision. At last, we found that the interaction of magnons is attractive which tends to self-localization to form spin waves, i.e., a cluster of a macroscopic number of coherent magnons. Because of the attraction, the instability of spin wave brings about the existence of solitary wave.

    • Author Affiliations


      Yong-Qing Liu1

      1. Department of Physics and Electronics, XinZhou Teachers University, XinZhou, 034000, China
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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