Magnetic soliton and soliton collisions of spinor Bose-Einstein condensates in an optical lattice

Z. D. Li, P. B. He, L. Li, J. Q. Liang, and W. M. Liu

Phys. Rev. A 71, 053611 – Published 19 May 2005

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.

Received 25 April 2004

DOI:https://doi.org/10.1103/PhysRevA.71.053611

Authors & Affiliations

Z. D. Li¹, P. B. He², L. Li¹, J. Q. Liang¹, and W. M. Liu²

¹Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China
²Joint Laboratory of Advanced Technology in Measurements, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

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Vol. 71, Iss. 5 — May 2005

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