Bragg spectroscopy of a superfluid Bose-Hubbard gas

IMR OpenIR

	Bragg spectroscopy of a superfluid Bose-Hubbard gas
	X. Du; S. P. Wan; E. Yesilada; C. Ryu; D. J. Heinzen; Z. X. Liang; B. A. Wu
	2010
发表期刊	New Journal of Physics
ISSN	1367-2630
卷号	12
摘要	Bragg spectroscopy is used to measure the excitations of a trapped, quantum-degenerate gas of (87)Rb atoms in a three-dimensional (3D) optical lattice. The measurements are carried out over a range of optical lattice depths in the superfluid phase of the Bose-Hubbard model. For a fixed wavevector, the resonant frequency of the excitation is found to decrease with increasing lattice depth. A numerical calculation of the resonant frequencies based on Bogoliubov theory shows a less steep rate of decrease than the measurements.
部门归属	[du, x.; wan, shoupu; yesilada, emek; ryu, c.; heinzen, d. j.] univ texas austin, dept phys, austin, tx 78712 usa. [liang, zhaoxin; wu, biao] chinese acad sci, inst phys, beijing 100190, peoples r china. [liang, zhaoxin] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wu, biao] peking univ, int ctr quantum mat, beijing 100871, peoples r china.;heinzen, dj (reprint author), univ texas austin, dept phys, austin, tx 78712 usa;heinzen@physics.utexas.edu
关键词	Einstein Condensate Mott Insulator Optical Lattices Light-scattering Atoms Transition
URL	查看原文
WOS记录号	WOS:000281279200005
引用统计	被引频次：31[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/321006/31083
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Du,S. P. Wan,E. Yesilada,et al. Bragg spectroscopy of a superfluid Bose-Hubbard gas[J]. New Journal of Physics,2010,12.
APA	X. Du.,S. P. Wan.,E. Yesilada.,C. Ryu.,D. J. Heinzen.,...&B. A. Wu.(2010).Bragg spectroscopy of a superfluid Bose-Hubbard gas.New Journal of Physics,12.
MLA	X. Du,et al."Bragg spectroscopy of a superfluid Bose-Hubbard gas".New Journal of Physics 12(2010).