Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells

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	Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells
	R. Xue; Z. X. Liang; W. D. Li
	2009
发表期刊	Journal of Physics B-Atomic Molecular and Optical Physics
ISSN	0953-4075
卷号	42 期号:8
摘要	A set of exact closed-form Bloch-state solutions to the stationary Gross-Pitaevskii equation are obtained for a Bose-Einstein condensate in a one-dimensional periodic array of quantum wells, i.e. a square-well periodic potential. We use these exact solutions to comprehensively study the Bloch band, the compressibility, effective mass and the speed of sound as functions of both the potential depth and interatomic interaction. According to our study, a periodic array of quantum wells is more analytically tractable than the sinusoidal potential and allows an easier experimental realization than the Kronig-Penney potential, therefore providing a useful theoretical model for understanding Bose-Einstein condensates in a periodic potential.
部门归属	[xue, rui; li, weidong] shanxi univ, inst theoret phys, taiyuan 030006, peoples r china. [xue, rui; li, weidong] shanxi univ, dept phys, taiyuan 030006, peoples r china. [liang, zhaoxin] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;xue, r (reprint author), shanxi univ, inst theoret phys, taiyuan 030006, peoples r china;zhxliang@gmail.com wdli@sxu.edu.cn
关键词	Optical Lattices Sound-propagation Gas Dynamics Atoms Bands
URL	查看原文
WOS记录号	WOS:000265031200015
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32469
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. Xue,Z. X. Liang,W. D. Li. Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells[J]. Journal of Physics B-Atomic Molecular and Optical Physics,2009,42(8).
APA	R. Xue,Z. X. Liang,&W. D. Li.(2009).Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells.Journal of Physics B-Atomic Molecular and Optical Physics,42(8).
MLA	R. Xue,et al."Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells".Journal of Physics B-Atomic Molecular and Optical Physics 42.8(2009).