- PII
- 10.31857/S0033849425040078-1
- DOI
- 10.31857/S0033849425040078
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 70 / Issue number 4
- Pages
- 376-383
- Abstract
- An equation for the dynamics of a Bose-Einstein condensate of magnons in a ferromagnetic film is presented, derived from quantum-mechanical theory. The main interactions affecting the evolution of the condensed state are considered. The transition from the equation for the annihilation operator of condensed magnons to an autonomous system of first-order differential equations describing their amplitude and phase is made. Phase trajectories of such a system were studied by constructing phase portraits and determining the stability of stationary points.
- Keywords
- Бозе-Эйнштейновская конденсация магнон параметрическая накачка фазовый портрет нелинейность
- Date of publication
- 16.09.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 16
References
- 1. Arute F., Arya K., Ryan Babbushet R. et al. // Nature. 2019. V. 574. № 7779. P. 505.
- 2. Ladd T.D., Jelezko F., Laflamme R. et al. // Nature. 2010. V. 464. № 7285. P. 45.
- 3. Demokritov S.O., Demidov V.E., Dzyapko O. et al. // Nature. 2006. V. 443. № 7110. P. 430.
- 4. Rezende S.M. Fundamentals of Magnonics. Cham: Springer Nature, 2020.
- 5. Stancil D.D., Prabhakar A. Spin Waves: Theory and Applications. N.Y.: Springer, 2009.
- 6. Holstein T., Primakoff H. // Phys. Rev. 1940. V. 58. № 12. P. 1098. http://dx.doi.org/10.1103/PhysRev.58.1098
- 7. Bogoljubov N.N. // Il Nuovo Cimento. 1958. V. 7. № 6. P. 794. http://dx.doi.org/10.1007/BF02745585.
- 8. Mohseni M., Qaiumzadeh A., Serga A.A. et al. // New J. Phys. 2020. V. 22. № 8. P. 083080.
- 9. Balucani U., Barocchi F., Tognetti V., Brunner G. // Phys. Rev. B. 1972. V. 6. № 11. P. 4356.
- 10. De Araujo C.B. // Phys. Rev. B. 1974. V. 10. № 9. P. 3961.
