Magnetic soliton and soliton collisions of spinor Bose-Einstein condensates in an optical lattice
Abstract
We study the magnetic soliton dynamics of spinor Bose-Einstein condensates in an optical lattice which results in an effective Hamiltonian of anisotropic pseudospin chain. A modified Landau-Lifshitz equation is derived and exact magnetic soliton solutions are obtained analytically. Our results show that the time oscillation of the soliton size can be controlled in practical experiment by adjusting of the light-induced dipole-dipole interaction. Moreover, the elastic collision of two solitons is investigated.
- Publication:
-
Physical Review A
- Pub Date:
- May 2005
- DOI:
- 10.1103/PhysRevA.71.053611
- arXiv:
- arXiv:cond-mat/0506101
- Bibcode:
- 2005PhRvA..71e3611L
- Keywords:
-
- 03.75.Lm;
- 05.30.Jp;
- 67.40.Fd;
- Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitations;
- Boson systems;
- Dynamics of relaxation phenomena;
- Condensed Matter - Other Condensed Matter
- E-Print:
- 16 pages, 5 figures