物理学报2011，Vol.60Issue(12)：39-43,5.
光晶格中非相干超冷原子的密度关联效应
Density correlation effect of incoherent ultracold atoms in an optical lattice
摘要
Abstract
Atoms in the Mott insulator state trapped in an optical lattice are incoherence matter wave source.It is not the first-order,but the second-order interference effect （density correlation） that will appear for this incoherence wave source after being released.A density correlation function of the freely expanding ultracold gases is obtained theoretically,which presents sharp peaks of interference,and the stripes structure is similar to the diffraction gratings.It is further pointed out that the peak structure of the density correlation function depends on the relative position between two detectors.The phenomenon of subwavelength interference of matter waves is also proposed in this paper.关键词
光晶格/密度关联函数/两粒子干涉Key words
optical lattice/density correlation function/two-particle interference分类
数理科学引用本文复制引用
徐志君,刘夏吟..光晶格中非相干超冷原子的密度关联效应[J].物理学报,2011,60(12):39-43,5.基金项目
浙江省自然科学基金（批准号：Y6090620）资助的课题 （）
