EVAPORATIVE COOLING OF ATOMIC-HYDROGEN - THEORY OF COOLING AND PROGRESS TOWARDS THE BOSE-EINSTEIN TRANSITION

被引：20

作者：

DOYLE, JM ^{[1
]}

SANDBERG, JC ^{[1
]}

YU, IA ^{[1
]}

CESAR, CL ^{[1
]}

KLEPPNER, D ^{[1
]}

GREYTAK, TJ ^{[1
]}

机构：

[1] MIT,CTR MAT SCI & ENGN,CAMBRIDGE,MA 02139

来源：

PHYSICA B | 1994年 / 194卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-4526(94)90336-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a model for and the results of experiments on evaporative cooling of magnetically trapped atomic hydrogen. Forced evaporative cooling and compression were performed simultaneously to produce a sample with a density of 8 x 10(13) cm-3 at a temperature of 100 muK, a factor of 3.5 above the critical temperature of the Bose-Einstein condensation phase transition at this density and well below the 1.3 mK recoil limit for laser cooling. A quantitative model of evaporative cooling has been developed and its predictions are in good agreement with the data.

引用

页码：13 / 14

页数：2

共 9 条

[1] HYDROGEN IN THE SUBMILLIKELVIN REGIME - STICKING PROBABILITY ON SUPERFLUID HE-4 [J].