Critical behaviours of contact near phase transitions

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 > 理论与交叉研究部

	Critical behaviours of contact near phase transitions
	Chen, Y. -Y.1; Jiang, Y. -Z.1; Guan, X. -W.1,2,3; Zhou, Qi 4
刊名	NATURE COMMUNICATIONS
	2014-10-01
卷号	5
英文摘要	A central quantity of importance for ultracold atoms is contact, which measures two-body correlations at short distances in dilute systems. It appears in universal relations among thermodynamic quantities, such as large momentum tails, energy and dynamic structure factors, through the renowned Tan relations. However, a conceptual question remains open as to whether or not contact can signify phase transitions that are insensitive to short-range physics. Here we show that, near a continuous classical or quantum phase transition, contact exhibits a variety of critical behaviours, including scaling laws and critical exponents that are uniquely determined by the universality class of the phase transition, and a constant contact per particle. We also use a prototypical exactly solvable model to demonstrate these critical behaviours in one-dimensional strongly interacting fermions. Our work establishes an intrinsic connection between the universality of dilute many-body systems and universal critical phenomena near a phase transition.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	DELTA-FUNCTION INTERACTION ; CORRELATED FERMI GAS ; ONE-DIMENSION ; THERMODYNAMICS ; BOSONS ; TEMPERATURE ; SYSTEMS ; SPIN
收录类别	SCI
语种	英语
WOS记录号	WOS:000343980700004
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1486]
专题	武汉物理与数学研究所_理论与交叉研究部
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China 3.Australian Natl Univ, Res Sch Phys & Engn, Dept Theoret Phys, Canberra, ACT 0200, Australia 4.Chinese Univ Hong Kong, Dept Phys, Sha Tin, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Y. -Y.,Jiang, Y. -Z.,Guan, X. -W.,et al. Critical behaviours of contact near phase transitions[J]. NATURE COMMUNICATIONS,2014,5.
APA	Chen, Y. -Y.,Jiang, Y. -Z.,Guan, X. -W.,&Zhou, Qi.(2014).Critical behaviours of contact near phase transitions.NATURE COMMUNICATIONS,5.
MLA	Chen, Y. -Y.,et al."Critical behaviours of contact near phase transitions".NATURE COMMUNICATIONS 5(2014).