Evidence for Universal Four-Body States Tied to an Efimov Trimer

被引：196

作者：

Ferlaino, F. ^{[1
,2
]}

Knoop, S. ^{[1
,2
]}

Berninger, M. ^{[1
,2
]}

Harm, W. ^{[1
,2
]}

D'Incao, J. P. ^{[3
,4
,5
]}

Naegerl, H. -C. ^{[1
,2
]}

Grimm, R. ^{[1
,2
,3
]}

机构：

[1] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[2] Univ Innsbruck, Zentrum Quantenphys, A-6020 Innsbruck, Austria

[3] Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

[4] Univ Colorado, JILA, Boulder, CO 80309 USA

[5] NIST, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 14期

基金：

奥地利科学基金会;

关键词：

LARGE SCATTERING LENGTH; QUANTUM STATES; ATOMS; RECOMBINATION; RESONANCE; SYSTEM; CESIUM;

D O I：

10.1103/PhysRevLett.102.140401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the measurement of four-body recombination rate coefficients in an atomic gas. Our results obtained with an ultracold sample of cesium atoms at negative scattering lengths show a resonant enhancement of losses and provide strong evidence for the existence of a pair of four-body states, which is strictly connected to Efimov trimers via universal relations. Our findings confirm recent theoretical predictions and demonstrate the enrichment of the Efimov scenario when a fourth particle is added to the generic three-body problem.

引用

页数：4

共 27 条

[1]

[Anonymous], 1993, Resampling-Based Multiple Testing: Examples and Methods for p-Value Adjustment

[2]

BARONTINI G, ARXIV09014584

[3] Universality in few-body systems with large scattering length [J].