Polarized States and Domain Walls in Spinor Bose-Einstein Condensates

Details Polarized States and Domain Walls in Spinor Bose-Einstein Condensates Polarized States and Domain Walls in Spinor Bose-Einstein Condensates

2007-06-22

arxiv.org/abs/0706.3361v1

Phys. Rev. A 76 (2007) 063603

Physics

Condensed Matter

Other Condensed Matter

7 pages, 9 figures, submitted to Phys. Rev. A

Scientific paper

10.1103/PhysRevA.76.063603

We study spin-polarized states and their stability in anti-ferromagnetic states of spinor (F=1) quasi-one-dimensional Bose-Einstein condensates. Using analytical approximations and numerical methods, we find various types of polarized states, including: patterns of the Thomas-Fermi type; structures with a pulse-shape in one component inducing a hole in the other components; states with holes in all three components; and domain walls. A Bogoliubov-de Gennes analysis reveals that families of these states contain intervals of a weak oscillatory instability, except for the domain walls, which are always stable. The development of the instabilities is examined by means of direct numerical simulations.

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