Dynamic Structure Factor of an Optically Trapped Dipolar Bose-Einstein Condensate

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	Dynamic Structure Factor of an Optically Trapped Dipolar Bose-Einstein Condensate
	W. Qi; Z. X. Liang; Z. D. Zhang
	2014
发表期刊	Communications in Theoretical Physics
ISSN	0253-6102
卷号	61 期号:2 页码:191-196
摘要	Motivated by the recent experimental achievements in using the Bragg spectroscopy to measure the excitation spectrum of an ultra-cold atomic system with long-range interactions, we investigate the dynamic structure factor of a cigar-shaped dipolar Bose condensate trapped in a one-dimensional optical lattices. Our results show that the Bogoliubov bands of the system, particularly the lowest one, can be significantly influenced when one tunes the dipole orientation. Consequently, the calculated static structure factor of an optically trapped dipolar Bose gas shows marked difference from the non-dipolar one. Moreover, we show that the effects of dipole-dipole interaction on the dynamic structure factor is also strongly affected by the strength of the optical confinement.
部门归属	[qi wei ; liang zhao-xin ; zhang zhi-dong] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; liang, zx (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; zhxliang@imr.ac.cn
关键词	Bose-einstein Condensate Optical Lattice Dynamic Structure Factor Gases
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语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72568
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Qi,Z. X. Liang,Z. D. Zhang. Dynamic Structure Factor of an Optically Trapped Dipolar Bose-Einstein Condensate[J]. Communications in Theoretical Physics,2014,61(2):191-196.
APA	W. Qi,Z. X. Liang,&Z. D. Zhang.(2014).Dynamic Structure Factor of an Optically Trapped Dipolar Bose-Einstein Condensate.Communications in Theoretical Physics,61(2),191-196.
MLA	W. Qi,et al."Dynamic Structure Factor of an Optically Trapped Dipolar Bose-Einstein Condensate".Communications in Theoretical Physics 61.2(2014):191-196.