Collisions between tunable halo dimers:: Exploring an elementary four-body process with identical bosons

被引：69

作者：

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

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

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

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

Schoebel, H. ^{[1
,2
]}

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

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.101.023201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study inelastic collisions in a pure, trapped sample of Feshbach molecules made of bosonic cesium atoms in the quantum halo regime. We measure the relaxation rate coefficient for decay to lower-lying molecular states and study the dependence on scattering length and temperature. We identify a pronounced loss minimum with varying scattering length along with a further suppression of loss with decreasing temperature. Our observations provide insight into the physics of a few-body quantum system that consists of four identical bosons at large values of the two-body scattering length.

引用

页数：4

共 38 条

[1] Dynamics of a strongly interacting Fermi gas: The radial quadrupole mode [J].