Bose-Einstein condensation of atomic hydrogen

被引：640

作者：

Fried, DG ^{[1
]}

Killian, TC

Willmann, L

Landhuis, D

Moss, SC

Kleppner, D

Greytak, TJ

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.81.3811

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report observation of Bose-Einstein condensation (BEC) of a trapped, dilute gas of atomic hydrogen. The condensate and normal gas are studied by two-photon spectroscopy of the 1S-2S transition. Interactions among the atoms produce a shift of the resonance frequency proportional to density. The condensate is clearly distinguished by its large frequency shift. The peak condensate density is 4.8 +/- 1.1 x 10(15) cm(-3), corresponding to a condensate population of 10(9) atoms. The BEC transition occurs at about T = 50 mu K and n = 1.8 x 10(14) cm(-3). [S0031-9007(98)07617-0].

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页码：3811 / 3814

页数：4

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