Abstract
Using Glauber’s coherent state approach along with the Dyson–Maleev bosonic representation of spin operators, we examine the nonlinear spin dynamics of a 3-dimensional Heisenberg ferromagnetic spin system with bilinear and anisotropic interactions in the semi-classical limit. By combining the multiple-scale technique with quasi-discreteness approximation, we create a perturbed Cubic Nonlinear Schrödinger equation. We perform a multiple-scale perturbation analysis to see how discreteness affects the soliton excitations. We created the perturbed soliton, and the perturbation analysis demonstrates that the soliton’s amplitude and velocity remain unchanged. Moreover, graphical illustrations and analytical solutions are provided to illustrate the aspects of modulational instability.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
