Criteria for two-dimensional kinematics in an interacting Fermi gas

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 原子分子光物理研究部

	Criteria for two-dimensional kinematics in an interacting Fermi gas
	Dyke, P.1; Fenech, K.1; Peppler, T.1; Lingham, M. G.1; Hoinka, S.1; Zhang, W.2,3; Peng, S. -G.4; Mulkerin, B.1; Hu, H.1; Liu, X. -J.1
刊名	PHYSICAL REVIEW A
	2016-01-14
卷号	93 期号:1
英文摘要	Ultracold Fermi gases subject to tight transverse confinement offer a highly controllable setting to study the two-dimensional (2D) BCS to Berezinskii-Kosterlitz-Thouless superfluid crossover. Achieving the 2D regime requires confining particles to their transverse ground state which presents challenges in interacting systems. Here, we establish the conditions for an interacting Fermi gas to display 2D kinematics. Transverse excitations are detected by measuring the transverse expansion rate which displays a sudden increase when the atom number exceeds a critical value N-2D signifying a density driven departure from 2D kinematics. For weak interactions N-2D is set by the aspect ratio of the trap. Close to a Feshbach resonance, however, the stronger interactions reduce N-2D and excitations appear at lower density.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]	Optics ; Physics
关键词[WOS]	ULTRACOLD GASES ; SYSTEMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000368290900001
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/9143]
专题	武汉物理与数学研究所_原子分子光物理研究部
作者单位	1.Swinburne Univ Technol, Ctr Quantum & Opt Sci, Melbourne, Vic 3122, Australia 2.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China 3.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China 4.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Dyke, P.,Fenech, K.,Peppler, T.,et al. Criteria for two-dimensional kinematics in an interacting Fermi gas[J]. PHYSICAL REVIEW A,2016,93(1).
APA	Dyke, P..,Fenech, K..,Peppler, T..,Lingham, M. G..,Hoinka, S..,...&Vale, C. J..(2016).Criteria for two-dimensional kinematics in an interacting Fermi gas.PHYSICAL REVIEW A,93(1).
MLA	Dyke, P.,et al."Criteria for two-dimensional kinematics in an interacting Fermi gas".PHYSICAL REVIEW A 93.1(2016).