Topological Excitations in Spinor Bose-Einstein Condensates

Research paper by Shunji Tuchiya, Susumu Kurihara

Indexed on: 09 Jan '01Published on: 09 Jan '01Published in: Physics - Soft Condensed Matter


We investigate the properties of skyrmion in the ferromagnetic state of spin-1 Bose-Einstein condensates by means of the mean-field theory and show that the size of skyrmion is fixed to the order of the healing length. It is shown that the interaction between two skyrmions with oppositely rotating spin textures is attractive when their separation is large, following a unique power-law behavior with a power of -7/2.