Spin dynamics in a two-dimensional quantum gas

被引：7

作者：

Pedersen, Poul L. ^{[1
]}

Gajdacz, Miroslav ^{[1
]}

Deuretzbacher, Frank ^{[2
]}

Santos, Luis ^{[2
]}

Klempt, Carsten ^{[3
]}

Sherson, Jacob F. ^{[1
]}

Hilliard, Andrew J. ^{[1
]}

Arlt, Jan J. ^{[1
]}

机构：

[1] Aarhus Univ, QUANTOP, Inst Fys & Astron, DK-8000 Aarhus C, Denmark

[2] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[3] Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

EINSTEIN; LIMIT;

D O I：

10.1103/PhysRevA.89.051603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have investigated spin dynamics in a two-dimensional quantum gas. Through spin-changing collisions, two clouds with opposite spin orientations are spontaneously created in a Bose-Einstein condensate. After ballistic expansion, both clouds acquire ring-shaped density distributions with superimposed angular density modulations. The density distributions depend on the applied magnetic field and are well explained by a simple Bogoliubov model. We show that the two clouds are anticorrelated in momentum space. The observed momentum correlations pave the way towards the creation of an atom source with nonlocal Einstein-Podolsky-Rosen entanglement.

引用

页数：5

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