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Periodic spin domains of spinor Bose-Einstein condensates in an optical lattice |
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| Authors: | G.-P. Zheng J.-Q. Liang |
| Affiliation: | a College of Physics and Information Engineering, Henan Normal University, Xinxiang, Henan 453002, China b Institute of Theoretical Physics, Department of Physics, Shanxi University, Taiyuan, Shanxi 030006, China c Joint Laboratory of Advanced Technology in Measurements, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | The periodic spin domains of spinor Bose-Einstein condensates confined in a one-dimensional optical lattice are studied in terms of the equation of motion of the spinor which is reduced to the nonlinear Schrödinger equation with the help of Holstein-Primakoff transformation. It is shown that the spin domains obtained analytically can be easily controlled by adjusting the light-induced dipole-dipole interaction, which is realizable in optical lattice created by red-detuned laser beams with modulating intensity. The dynamical stability of the spin domains is also demonstrated. |
| Keywords: | 03.75.Hh 03.75.Mn 03.75.Kk |
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