Bose-Einstein condensation in a surface microtrap

被引：307

作者：

Ott, H ^{[1
]}

Fortagh, J ^{[1
]}

Schlotterbeck, G ^{[1
]}

Grossmann, A ^{[1
]}

Zimmermann, C ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.87.230401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Bose-Einstein condensation has been achieved in a magnetic surface microtrap with 4 x 10(5) Rb-87 atoms. The strongly anisotropic trapping potential is generated by a microstructure which consists of microfabricated linear copper conductor of widths ranging from 3 to 30 mum. After loading a high number of atoms from a pulsed thermal source directly into a magneto-optical trap the magnetically stored atoms are transferred into the microtrap by adiabatic transformation of the trapping potential. In the microtrap the atoms are cooled to condensation using forced rf-evaporation. The complete in vacuo trap design is compatible with ultrahigh vacuum below 2 x 10(-11) mbar.

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页码：230401 / 1

页数：4

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