2013/10/31 by T. Ollikainen, Tuomas Ollikainen, E. Ruokokoski +2
Mathematics · Physics and Astronomy · #Antiferromagnetism #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dynamics (music) #Harmonic #Magnetic field #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quadratic equation #Quantum mechanics #Skyrmion #Spin (aerodynamics) #Strong Light-Matter Interactions #Zeeman effect #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.89.033629
6 pages, 7 figures
arxiv created 2014/03/24 · openalex publication_date 2014/03/24 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We numerically simulate the creation process of two-dimensional skyrmionic excitations in antiferromagnetic spin-1 Bose-Einstein condensates by solving the full three-dimensional dynamics of the system from the Gross-Pitaevskii equation. Our simulations reproduce quantitatively the experimental results of Choi et al. [Phys. Rev. Lett. 108, 035301 (2012)] without any fitting parameters. Furthermore, we examine the stability of the skyrmion by computing the temporal evolution of the condensate in a harmonic potential. The presence of both the quadratic Zeeman effect and dissipation in the simulations is vital for reproducing the experimentally observed decay time.